NET

21 I am afraid that when I come again, my God may humiliate me before you, and I will grieve for many of those who previously sinned and have not repented of the impurity, sexual immorality, and licentiousness that they have practiced.

Darby

21 lest my God should humble me as to you when I come again, and that I shall grieve over many of those who have sinned before, and have not repented as to the uncleanness and fornication and licentiousness which they have practised.

KJV

21 [And] lest, when I come again, my God will humble me among you, and [that] I shall bewail many which have sinned already, and have not repented of the uncleanness and fornication and lasciviousness which they have committed.