'Confirm' in the Bible

And he shall confirm the covenant with many for one week: and in the midst of the week he shall cause the sacrifice and the oblation to cease, and for the overspreading of abominations he shall make it desolate, even until the consummation, and that determined shall be poured upon the desolate.

Also I in the first year of Darius the Mede, even I, stood to confirm and to strengthen him.