To feel the lusts of the flesh is not without profit to us. It prevents us from being vain and from being puffed up with the wicked opinion of our own work-righteousness. The monks were so inflated with the opinion of their own righteousness, they thought they had so much holiness that they could afford to sell some of it to others, although their own hearts convinced them of unholiness. The Christian feels the unholy condition of his heart, and it makes him feel so low that he cannot trust in his good works. He therefore goes to Christ to find perfect righteousness. This keeps a Christian humble. VERSES 19, 20. Now the works of the flesh are manifest, which are these: adultery, fornication, uncleanness, lasciviousness, idolatry, witchcraft... Paul does not enumerate all the works of the flesh, but only certain ones. First, he mentions various kinds of carnal lusts, as adultery, fornication, wantonness, etc. But carnal lust is not the only work of the flesh, and so he counts among the works of the flesh also idolatry, witchcraft, hatred, and the like. These terms are so familiar that they do not require lengthy explanations. IDOLATRY The best religion, the most fervent devotion without Christ is plain idolatry. It has been considered a holy act when the monks in their cells meditate upon God and His works, and in a religious frenzy kneel down to pray and to weep for joy. Yet Paul calls it simply idolatry. Every religion which worships God in ignorance or neglect of His Word and will is idolatry. They may think about God, Christ, and heavenly things, but they do it after their own fashion and not after the Word of God. They have an idea that their clothing, their mode of living, and their conduct are holy and pleasing to Christ. They not only expect to pacify Christ by the strictness of their life, but also expect to be rewarded by Him for their good deeds. Hence their best “spiritual” thoughts are wicked thoughts. Any worship of God, any religion without Christ is idolatry. In Christ alone is God well pleased. I have said before that the works of the flesh are manifest. But idolatry puts on such a good front and acts so spiritual that the sham of it is recognized only by true believers. WITCHCRAFT This sin was very common before the light of the Gospel appeared. When I was a child there were many witches and sorcerers around who “bewitched” cattle, and people, particularly children, and did much harm. But now that the Gospel is here you do not hear so much about it because the Gospel drives the devil away. Now he bewitches people in a worse way with spiritual sorcery.