Then goeth he, and taketh with himself seven other spirits more wicked than himself, and they enter in and dwell there: and the last state of that man is worse than the first. Even so shall it be also unto this wicked generation.
~ Matthew 12:45

But call to remembrance the former days, in which, after ye were illuminated, ye endured a great fight of afflictions;
~ Hebrews 10:32

For Herod feared John, knowing that he was a just man and an holy, and observed him; and when he heard him, he did many things, and heard him gladly.
~ Mark 6:20

Wherefore ye be witnesses unto yourselves, that ye are the children of them which killed the prophets. Fill ye up then the measure of your fathers.
~ Matthew 23:31-32

Ignorance is Another Occasion of Apostasy from the Truth,, by John Owen. The following contains an excerpt from Chapter Five of his work, The Nature of Apostasy From the Profession of the Gospel, and the Punishment of Apostates Declared In An Exposition of Hebrews 6:4-6.

Continuation of Chapter 5

Chapter 5 – Darkness and ignorance another cause of apostasy.

Ignorance is another occasion of apostasy from the truth, which was named under this head of the depravation of the minds of men. It is the want of a due perception, understanding, or knowledge of the principal doctrines of the gospel, with the evidence which is given unto them, and the use of them in the Scriptures, that we intend hereby. A general knowledge of some doctrines, without an acquaintance with their grounds and reasons, their use and effects in the life of God, is of no value in these things When persons know not in religion what they ought to know, as they ought to know it, or what it is their duty to know, and without the knowledge whereof they can perform no other duty of religion in a right manner, then are they culpably ignorant, and so as to be exposed unto all other evils that may befall them; for whether this be for want of due instruction from others, or want of diligence in themselves to learn, the event is equally pernicious. In the first way, the Holy Ghost assures us that “where there is no vision, the people perish,” Proverbs 29:18. The people will suffer where those whose duty it is so to do are not able to instruct them; for “if the blind lead the blind, both must fall into the ditch.” And in general it is affirmed, that the “people are destroyed for lack of knowledge,” Hosea 4:6. Of such ruinous consequence, by one means or other, is the people’s ignorance of what it is their duty to know; and by no one way doth it so effectually operate unto their destruction as by this of disposing them to a defection from the truth which they have professed when any trial or temptation doth befall them.

Multitudes, yea, whole nations, are often brought unto an outward general profession of the truth of religion, especially with respect unto the opposition of any other that is made thereunto. The influence and example of some that are in power and esteem among them, falling in with a season of encouraging circumstances, may produce this effect, where men have little knowledge of what they profess, and less sense of its power and efficacy. So the body of the people of old turned unto the profession of the true religion under the reformation made by Josiah; nevertheless, as the prophet observes, “they did it not with their whole hearts, but feignedly,” Jeremiah 3:10. They did it not out of love to the truth, or a cordial respect unto the ways of God, but in a hypocritical compliance with their ruler. The conversion of the northern nations after they had possessed the western parts of the Roman empire was a pledge of what their future profession was like to prove. The first conversion of the world was by the laborious preaching of apostles, evangelists, and others, accompanied with many miraculous operations, exemplified in holiness of life, and patience under all sorts of persecutions; and by this means none were received or admitted into the profession of Christian religion but such as were personally convinced of its truth, instructed in its mysteries, conformed in their lives to its precepts, and engaged unto its profession against persecution. But in these latter conversions, some kings, rulers, or potentates, being dealt withal by popes or other princes, and thereon (perhaps with no small influence from secular considerations) admitting of the Christian religion in opposition unto Paganism, their allies, kindred, and subjects, usually followed them therein; having indeed little more of Christianity than the administration of some external rites, and a relinquishment of their old idols for the new saints proposed unto them. By this means their first profession of Christianity was laid in profound ignorance of the principles and most important doctrines and duties of the gospel. Hence it became most easy for them who were looked on as their guides to lead them into all those foolish opinions, idolatrous practices, superstitious devotions, and blind subjection to themselves, whence at length issued the fatal apostasy. Knowing but little of what they ought to have known, and delighting not in obedience unto what they did know, they willingly embraced themselves, and God judicially gave them up unto, those strong delusions which turned them wholly from the gospel.

Thus the generality of this nation hath received and professed the protestant religion in opposition unto Popery; and no doubt many did so through a sincere and effectual conviction of its truth, upon the first reformation. But it is so come to pass, that what through their own supine negligence and carelessness about all things invisible and eternal, what through the sloth, ignorance, laziness, and wretched indifferency in religion, of some of those that should instruct them, multitudes are become shamefully ignorant of the rudiments and principles of that religion which they account themselves to profess. So hath it been almost in all ages and places after profession became national. Many will not make use of the means of instruction which they have, and more want that means in an effectual measure. Nor, it may be, can there be an instance given where there hath been sufficient care taken, or at least sufficient provision made, for the instruction of the body of the people in all parts of it; neither is that ordinary course of the ministry which is passant in the world sufficient to this purpose. Can any man who knows any thing of the gospel, or of the nature of men with respect unto spiritual things, once suppose that the reading of prayers unto a people, or the rehearsing of a sermon without zeal, life, power, or evidence of compassion for the souls of men, accompanied with a light, vain, worldly conversation (as it is with many), should answer the apostolical pattern of laying the foundation, and then carrying on of men by continual instruction unto perfection? From hence (as also from other reasons obvious unto all impartial observers) it is that “darkness covers the earth, and gross darkness the people,” ignorance prevailing on all sorts of men. Some will not learn, some have none to teach them, some are engaged in the pursuit of sensual lusts and vanities, some swallowed up in the love of and cares about the things of the world; few in any age have been conscientiously diligent in the things which are of eternal concernment unto them.

This was that which facilitated the papal apostasy, from whence it took its rise, and by which it received its progress. Those who would on the motives mentioned be accounted Christians, and which it was the interest of the pretended presidents in religion to have so esteemed, being profoundly ignorant, they first accommodated the practices of religion unto their carnal, superstitious minds, and then gradually led them into all errors and fables; for they were blind, and knew not whither they went. So were the important truths of the gospel abandoned for monkish dreams, for legends of foolish, lying miracles, and other heathenish superstitions. It was by ignorance, I say, principally, that the people gave themselves up unto the power of seducers; which enabled the architects of the Roman apostasy to carry them into opinions, ways, and practices, suited unto their secular interest: and so sensible have they been of their advantage hereby, as that some of them have commended ignorance, as the most useful qualification of the people in religion!

We may therefore well fix this as another cause, or occasion at least, of apostasy. When men are ignorant of the religion which themselves profess, as to its doctrines, and the principal grounds of them; when they are like the Samaritans, who understood not their own religious worship, which they had received by tradition, but “worshipped they knew not what,” John 4:22, — they are no way able to defend themselves against the least impressions of seducers. They may plod on in the old track of some formal outward duties, but if any one meet them in their way, it is easy for him to turn them out of it. So the apostle, showing the danger that professors were in because of apostatical seducers, assigns the means of their preservation to be “the unction which they had received, whereby they knew all things,” 1 John 2:19,20,27. Had they not been taught and instructed in the truth, they could not, at such a season, have persevered in the profession of the faith. Yea, such persons are very ready to think that there is something worthy their consideration in what is proposed unto them by the most corrupt seducers, whereas they have really found nothing in what themselves have so long professed; for no man can find any real benefit, profit, or advantage, in that whereof he is ignorant. So it is said that some by “good words and fair speeches deceive the hearts of the simple,” Romans 16:18. Every thing they say hath a plausible pretense and appearance unto persons under that character, so as that they are apt to be taken and pleased with it. Hence is that advice of the apostle unto them who design establishment in faith and order: “Brethren, be not children in understanding; howbeit in malice be ye children, but in understanding be men,” 1 Corinthians 14:20. Te,leioi gi,nesqe tai/j fresi., Be ye complete, perfect,” well instructed in your minds, fully initiated into the doctrines of the gospel. Such the apostle calls telei,ouj, “perfect men,” 1 Corinthians 2:6; Hebrews 5:14. Those who, in opposition hereunto, are “children,” — that is, weak and ignorant, — will also be uncertain and unstable. They will be as children, “tossed to and fro, and carried about with every wind of doctrine, by the sleight of men, and cunning craftiness, whereby they lie in wait to deceive,” Ephesians 4:14.

For let some crafty papal emissaries come among this sort of people, and let them confidently tell them that they neither have, nor ever will have, any benefit by the religion they profess, and that they have no evidence or assurance of the truth of it; — they tell them no more but what they will know to be true if once they take it into consideration; for whereas they have seemed to be “always learning,” by resorting to church, and the like outward means whereby religion is expressed, yet they “never came to the knowledge of the truth.” Wherefore, when by any means they are put unto a stand, and are forced to consider themselves, they are amazed to find how little it is that they believe of the religion which they profess, or know of the ground of what they would be thought to believe.

Let such persons add (as they will not fail to do) that with them of Rome is full assurance, that none ever mistook the way who accompanied them that are of the old religion, which their forefathers professed so many ages before this new-fangledness came up, which hath filled all things with confusion, disorder, sects, and divisions, whereas before all were of one mind (which was the most plausible argument of Paganism against Christianity), every troublesome personal circumstance of their present condition makes them inclinable to believe that it may be as they say. Let them tell them, moreover, of the power granted unto the priesthood of their church to pardon all sorts of sins; of the effectual intercession of saints and angels, among whom they may choose out particular patrons and guardians for themselves; of the mercy, grace, goodness, power, and interest in heaven of the blessed Virgin, all continually exercised in the behalf of Catholics; of the miracles that are daily wrought among them; of the wondrous sanctity and devotion which some among them have attained; — they begin to think that there is somewhat in these things which they can feel or see, whereas in their own religion they can understand little or nothing at all. The “great things” of the gospel are “strange things” unto them; they neither do nor can understand them by all the diligence they think meet to use in this case. But the things now proposed unto them have the nature of tales, which the mind of man is accustomed unto, and apt both to receive and retain. And it is not imaginable how easy a transition will prove from a religion whereof men know little or nothing at all, unto that which at one view presents unto their fancies and senses all that they need believe or do that they may be eternally happy.

Suppose one of another sort to come among such persons, and at once call them off from the profession of that religion which they pretend unto, confidently requiring them to attend wholly unto a light within them, which will be their guide and direct them unto God; — they find by natural experience that there is some such light within them as that which he seems to propose unto them; for there is so in all men, as the apostle declares, even the light of conscience, accusing or excusing as unto sin or duty, Romans 2:14,15. Having, therefore, by reason of their ignorance, no experience of any power or efficacy in that religion which themselves profess, they begin to think there is a reality in what is proposed unto them, and so are easily inveigled; for there is no security of his constancy for one moment, when a trial or temptation shall befall him, who hath not light or knowledge enough of the truth to give him some inward experience of the efficacy of what he doth profess.

But it is no way necessary to insist any longer on that which is so evident, both in matter of fact and in the reasons of it. An apostasy from a traditional profession of those truths which indeed men understand not, is easy, and in a time of temptation unavoidable. In all ages, multitudes have thus perished for want of knowledge; for such persons are destitute of defense against any external cause or means of defection. They have nothing in their minds to oppose to force, nothing unto seductions or fraud, nothing to the examples of great leaders, nothing to conflict with the superstition of their own minds; and will therefore, when wind and tide suit the design, comply with any fair pretense for a revolt.

And herein lieth no small part of the danger of the public profession of the protestant religion among us. By whose defect principally God knows, but it is incredible how stupidly ignorant multitudes are. Such there are who know no difference in religion, whilst the same names of God and Christ are commonly used, and the same places frequented for worship. Yet will this sort of men show great zeal and earnestness against Popery and other heresies! None more forward to revile, contemn, and prosecute them to their power; as ready as Mohammedans are to persecute Christians, or Papists sincere believers, and that on the same grounds. But if at any time they are put unto a stand, and necessitated to give an account unto themselves of the reason of their own religion, what it is they believe, and why they do so, their confidence will fail them, and, like unto men fallen into cross-paths and ways, they will not know what to do. And on such occasions they are the readiest of all men, in a kind of shame of themselves, to give up the religion which they have professed for any other, wherein it is promised they shall have more skill, and by which they may have some benefit, as it is pretended, whereas by their own they have had none at all.

Whatever, therefore, is amongst us or elsewhere an occasion of ignorance among the people, it doth expose them unto a fatal defection from the truth If those upon whom it is incumbent to instruct them in the knowledge of the truths and mysteries of the gospel are unskillful or negligent in the discharge of their duty, they do what lieth in them to give them up bound hand and foot to the power of their spiritual adversaries; and they will be found chargeable with no less guilt who lay obstructions in the way of others who would willingly labor in the instruction of them unto their power. A man would think, from all circumstances, and all indications of the present inclinations of the minds of men, that it were the chief interest of all that really love the protestant religion to preserve its professors from apostasy or any disposition thereunto. That this will be done effectually without a continual instruction of them in the truths which are to be professed, with their grounds, reasons, and effects, is so fond an imagination as that it deserves no consideration. It is but to build castles in the air, to suppose that men will be kept constant in the profession of religion by outward laws, the observance of external forms, and the secular advantage of some persons by it, wherein they are not concerned. They will not be so, I say, when a trial shall befall them. There is no other means that is appointed of God, or is rational in itself, for the attaining of this end, but that those who are so concerned do what in them lies personally to instruct the people in the truth, encouraging them unto obedience by their own example; and to prevail with them who have the same design to be assisting with them therein. But to cry out of the great danger of protestant religion in the growth of Popery, and at the same time not only to be negligent themselves in the great duty of communicating the real effectual knowledge of it unto the souls of men, but also to lay needless obstructions in the way of others who would sincerely endeavor so to do, is an unaccountable solecism in religion. Either we are not in earnest in our pretended zeal for the truth and our fears of the prevalency of Popery, or we believe not that instruction in the truth is the only means to preserve men in the useful profession of it; which is to renounce the gospel and all rational consideration therewithal, or we are influenced by other things, which we far more esteem than evangelical truth and the purity of religion.

The reformation of the church consisted principally in the deliverance of the people from darkness and ignorance; and if through our neglect they should be reduced again into the same state and condition, they would be a ready prey for the Papacy to seize upon. The advice of the apostle, as to the duty of all gospel ministers and officers in such a season as we are fallen into, is that alone which will preserve us, 2 Timothy 4:1-5.

But it may be supposed that so much labor and diligence in the instruction and teaching of the people, as some assert, is altogether unnecessary. It is enough if they be taught what are the general principles of religion, and do thereon comply with the conduct of the church whereunto they do belong. Besides, if this burden be incumbent on the ministry, that those called thereunto are to have no relaxation from constant, sedulous “laboring in the word and doctrine,” and are moreover required to exemplify what they teach in the whole course of their conversation, who would ever take upon him that office that can advantage himself in the world any other way? It must needs prove very burdensome if we have a religion that will not be preserved in the minds of men without all this constant., endless toil and labor. In the Roman church we see how easy a thing it is to keep up the people unto its profession, whilst the clergy are at liberty to pursue and use the pleasures and honors of this world, nor are any of them obliged unto those irksome and endless pains which we seem to require; yea, they find by experience that ignorance in the people is the best expedient to keep them in subjection to the priests, and then all things are secure. I wish that such thoughts as these do not influence the minds of some unto a readiness for a change, if so be it might be effected without hazard. But if more pains, diligence, labor, with perseverance therein, be required by us in the ministers of the gospel and guides of the church, than the Holy Ghost in the Scripture doth plainly, positively, frequently enjoin, let it be rejected and despised. Alas! the best of us, of all that are alive, do come short in many things of the rules and examples that are proposed unto us therein, nor do I know on what grounds or by what measures the most of us do intend to give in our accounts at the last day. Nor is there any more impious opinion, nor more contradictory to the gospel, than that it is enough for the people to be instructed only in the general principles of religion, without any farther improvement or growth in knowledge: for those who are thus called “The people” are, I suppose, esteemed Christians, — that is, disciples of Jesus Christ, and members of his mystical body; and if they are so, their growth in understanding, their edification in knowledge, their being carried on unto perfection, their acquaintance with the whole counsel of God, with the mysteries of his love and grace in Christ Jesus, are as necessary for them as the “saving of their souls,” indispensably depending thereon, can render them. And if we will be ministers of the gospel, it will not be best for us to prescribe unto ourselves our rules and measures of duty. It will be our wisdom to accept of that office on the terms limited by the Holy Ghost, or utterly to let it alone. And we must know, that the more exactly our profession is suited unto the gospel, the less mixture there is in it of any thing human, the more difficult it is thoroughly to instruct men in the knowledge of it. The mind of man is far more apt and able to comprehend and retain fables, errors, and superstitions, than evangelical truths. The former are natural unto it; against the latter it hath a dislike and enmity, until they are removed by grace. Hence, some will make a more appearing proficiency in a false religion in four or five days than others will do in the knowledge of the truth almost in so many years. We may have well-grown Papists in a month’s time, that shall be expert in the mysteries of their devotion; and there is another profession that two or three days will bring men unto a perfection in: but slow is the progress of most in learning the truth and mysteries of the gospel. If peculiar diligence and constant sedulity be not used in their instruction, they will be made a prey unto the next opportunity for a defection from the truth.