G4258–προαμαρτάνω–proamartanō

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.

προημαρτηκότων proēmartēkotōn “having sinned before”

I have declared beforehand, and I say beforehand as present the second time, and now absent, to those that have sinned before, and to all the rest, that if I come again I will not spare.

προημαρτηκόσιν proēmartēkosin “having sinned before”