(21) For.--(You had no fruit) for. &c. Some put the question at "then." "What fruit had ye therefore (omitted in the Authorised version) at that time? Things of which ye are now ashamed; for their end is death." But the construction of the Authorised version is probably best.

6:21-23 The pleasure and profit of sin do not deserve to be called fruit. Sinners are but ploughing iniquity, sowing vanity, and reaping the same. Shame came into the world with sin, and is still the certain effect of it. The end of sin is death. Though the way may seem pleasant and inviting, yet it will be bitterness in the latter end. From this condemnation the believer is set at liberty, when made free from sin. If the fruit is unto holiness, if there is an active principle of true and growing grace, the end will be everlasting life; a very happy end! Though the way is up-hill, though it is narrow, thorny, and beset, yet everlasting life at the end of it is sure. The gift of God is eternal life. And this gift is through Jesus Christ our Lord. Christ purchased it, prepared it, prepares us for it, preserves us to it; he is the All in all in our salvation.What fruit had ye then in those things?.... That is, what profit, pleasure, satisfaction, or comfort, had ye in the commission of sin? Sin yields no real profit to the servants of it. If a man, by sinful practices, could amass together the riches of the Indies, or gain the whole world, yet if his soul is lost thereby, what advantage would it be to him? he would be infinitely the loser by it; nor would all his wealth and riches profit him in the day of God's wrath and righteous judgment: nor is there any true pleasure in sin; persons may imagine within themselves they enjoy a real pleasure whilst they are serving divers lusts; but this is but imaginary, it is not real; and this imaginary pleasure is but for a season; it issues in bitterness and death: nor is there any satisfaction in it; when men have endeavoured to gratify their carnal lusts and sensual appetites in every way that can be devised, they still remain as they were; nor can they reflect with real satisfaction, and without some slinging remorse, upon the methods they have pursued to gain it: nor is there any true honour in sin, nothing but what is scandalous and disgraceful to human nature; shame, sooner or later, is the fruit of sin:

whereof ye are now ashamed; some men may be indeed for the present so hardened as not to blush and be ashamed at the commission of the vilest sins; such are they who have no sense of sin, have no fear of God, or regard to men; and so sin openly, and without any guise, glory in it, and make their boast of it: but when persons are wrought upon by the Spirit of God, they are ashamed of sin; which might be exemplified in the case of Adam and Eve, of Ephraim, of the prodigal son, and of the poor publican; the reason is, because light is struck into their hearts; and this makes manifest the odious and detestable nature of sin; sin is hereby seen in its own proper colours, as exceeding sinful, loathsome, and abominable: besides, the grace and goodness of God are discovered in the forgiveness of it; and the glory of God's purity and holiness, and the beauty and loveliness of Christ, are discerned by such persons; all which have a tendency to make them ashamed of sin, out of love with it, and to abhor it: and a good thing it is to be brought to be ashamed of sin here; for such who are not ashamed of it here, shall be brought to everlasting shame and confusion hereafter. Nay, this is not all; not only shame will be the fruit of sin, but it will also issue in death:

for the, end of those things is death: the profit, the reward, and wages of them is death: sin not only brings a spiritual or moral death on persons, on all the powers and faculties of their souls, and is followed with a corporeal death; but if grace prevent not, it will end in an eternal one; for however right and good the ways of sin may seem to the carnal mind, "the end thereof are the ways of death" (#Pr 14:12 16:25).