'Sinful' in the Bible

Whosoever therefore shall be ashamed of me and of my words in this adulterous and sinful generation; of him also shall the Son of man be ashamed, when he cometh in the glory of his Father with the holy angels.

And he cometh the third time, and saith to them, 'Sleep on henceforth, and rest -- it is over; the hour did come; lo, the Son of Man is delivered up to the hands of the sinful;