VERSE 21. Of the which I tell you before, as I have also told you in the past, that they which do such things shall not inherit the kingdom of God. This is a hard saying, but very necessary for those false Christians and hypocrites who speak much about the Gospel, about faith, and the Spirit, yet live after the flesh. But this hard sentence is directed chiefly at the heretics who are large with their own self-importance, that they may be frightened into taking up the fight of the Spirit against the flesh.