'Sinful' in the Bible

for whoever may be ashamed of me, and of my words, in this adulterous and sinful generation, the Son of Man also shall be ashamed of him, when he may come in the glory of his Father, with the holy messengers.'

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;