There are differences between the natural and the spiritual man’s dealing with sin. One difference is this, that the inward opposition that the natural man makes to sin proceeds from some common, low, selfish principle. It may be from their nature or education, that it has been imprinted upon them to some degree, the notion that sin is evil. But there is no antipathy or contrariness of nature to sin as is in the godly man, who hates sin as God hates it. One wicked man may hate and oppose another, but there is no rooted contrariness in their natures, as there is between a wicked man and a godly, “an unjust man is an abomination to the just: and he that is upright in the way is abomination to the wicked (Proverbs 29:27). It is in some simply one sin striving against another, refined sins opposing gross sins, or the same lust seeking itself in different ways. Second, The natural man’s motives are also mean and mercenary. It’s not love for holiness, nor a desire to please God. It is not that such a sin is contrary to the holiness of God, or to the holy law of God, or the injuriousness of sin to the love of God or Christ, or the inconsistency of it with communion with the Father, the Son and the Holy Spirit, that sets him to work against sin. Were there no punishments here to the workers of iniquity, and no hell afterwards, the natural man would indulge himself in many things. It would be a matter of rejoicing for him to hear there were no hell. Some sins are against a man’s interest or honour, and so it’s no surprise he be opposed to them. The arguments and motives of a natural man against sin are always carnal, either carnal fears or hopes.