Regarding the worship of idols other than God:
Man will necessarily have something that he respects as his god. If man do not give his highest respect to the God that made him, there will be something else that has the possession of it. Men will either worship the true God, or some idol: it is impossible it should be otherwise: something will have the heart of man. And that which a man gives his heart to, may be called his god: and therefore when man by the fall extinguished all love to the true God, he set up the creature in his room. For having lost his esteem and love of the true God, and set up other gods in his room, and in opposition to him; and God still demanding their worship, and opposing them; enmity necessarily follows.Regarding man's hatred of God's Law:
The strictness of God’s law is a principal cause of man’s enmity against God. If God were one that did not so much hate sin; if he would allow them in the gratification of their lusts in some degree, and his threatenings were not so awful against all criminal indulgence; if his threatenings were not so absolute; if his displeasure could be appeased by a few tears, a little reformation, or the like; they would not be so great enemies, nor hate him so much as they do. But God shows himself to be an implacable enemy to their idols, and has threatened everlasting wrath, infinite calamity, for all that they do in the service of their lusts; and this makes them irreconcilable enemies to him.Regarding unbelievers who do not see themselves as literal enemies of God:
Natural men do not generally conceive themselves to be so bad; they have not this notion of themselves, that they are enemies to God. And therefore when they hear such doctrine as this taught them, they stand ready to make objections. Some may be ready to say, “I do not know, I am not sensible, that I hate God, and have a mortal enmity against him. I feel no such thing in myself, and if I have such enmity, why do not I feel it? If I am a mortal enemy, why should not I know it better than any body else? How can others see what is in my heart better than I myself? If I hate one of my fellow-creatures, I can feel it inwardly working.” To such an objection I would answer,Regarding the supposedly "religious" who believe they are not God's enemies.
If you do but observe yourself, and search your own heart, unless you are strangely blinded, you may be sensible of those things, wherein enmity does fundamentally consist. Particularly, you may be sensible that you have at least had a low and contemptible estimation of God; and that, in your esteem, you set the trifles and vanities of this world far above him; so as to regard the enjoyment of these things far before the enjoyment of God, and to value these things better than his love.—And you may be sensible that you despise the authority of God, and value his commands and his honour but very little. Or if by some means you have blinded yourself, so as to think you do regard them now, doubtless you can look back and see that you have not regarded them.
That much of that seeming respect which natural men show to God, is owing to their education. They have been taught from their infancy that they ought to show great respect to God. They have been taught to use respectful language, when speaking about God, and to behave with solemnity, when attending on those exercises of religion, wherein they have to do with him. From their childhood, they have seen that this is the manner of others, when they pray to God, to use reverential expressions, and a reverential behaviour before him.And again:
Those who are brought up in places where they have, commonly from their infancy, heard men take the name of God in vain, and swear and curse, and blaspheme; they learn to do the same; and it becomes habitual to them. And it is the same way, and no other, that you have learned to behave respectfully towards God: not that you have any more respect to God than they; but they have been brought up one way, and you another. In some parts of the world, men are brought up in the worship of idols of silver, and gold, and wood, and stone, made in the shape of men and beast. “They say of them, Let the men that sacrifice, kiss the calf.” Hos. xiii. 2. In some parts of the world, they are brought up to worship serpents, and are taught from their infancy to show great respect to them. And in some places, they are brought up in worshipping the devil, who appears to them in a bodily shape; and to behave with a show of great reverence and honour towards him. And what respect you show to God has no better foundation; it comes the same way, and is worth no more.
That show of respect which you make is forced. You come to God, and make a great show of respect to him, and use very respectful terms, with a reverential tone and manner of speaking; and your countenance is grave and solemn: you put on an humble aspect; and use humble, respectful postures, out of fear. You are afraid that God will execute his wrath upon you, and so you feign a great deal of respect, that he may not be angry with you. “Through the greatness of thy power shall thine enemies submit themselves unto thee.” Psal. lxvi. 3. In the original it is, shall thine enemies lie to thee. It is rendered therefore in the margin, shall yield feigned obedience to thee. All that you do in religion is forced and feigned. Through the greatness of God’s power, you yield feigned obedience. You are in God’s power, and he is able to destroy you; and so you feign a great deal of respect to him, that he might not destroy you. As one might do towards an enemy that had taken him captive, though he at the same time would gladly make his escape, if he could, by taking away the life of him who had taken him captive.
The affections of natural men often arise from wrong notions they have of God. They conceive of God after the manner they do of men, as though he were a being liable to be wrought upon in his affections. They conceive of him as one whose heart could be drawn, whose affections can be overcome, by what he sees in them. They conceive of him as being taken with them, and their performances; and this works on their affections; and thus one tear draws another, and their affections increase by reflection. And oftentimes they conceive of God as one” that loves them, and is a friend to them: and such a mistake may work much on their affections. But such affections that arise towards God, as they conceit him to be, is no argument that they have not the same implacable hatred towards God, considered as he really is. There is no concluding that men are not enemies, because they are affected and shed tears in their prayers, and the like. Saul was very much affected when David expostulated with him about pursuing after him, and seeking to kill him. David’s words wrought exceedingly upon Saul’s affections. “And it came to pass when David had made an end of speaking these words unto Saul, that Saul said, Is this thy voice, my son David? and Saul lift up his voice and wept.” 1 Sam. xxiv. 16. chap. xxvi. 1,. &c. He was so affected that he wept aloud, and called David his son, though he was but just before seeking his life. But this affection of Saul was no argument that he did not still continue in his enmity against David. He was David’s mortal enemy before, and sought his life; and so he did afterwards, it was but a pang: his enmity was not mortified or done away. The next news we hear of Saul is, that he was pursuing David, and seeking his life again.