'Maintain' in the Bible

and these my words with which I have made supplication before Jehovah, are near unto Jehovah our God by day and by night, to maintain the cause of His servant, and the cause of His people Israel, the matter of a day in its day;

And not with a great force, and with a numerous assembly, Doth Pharaoh maintain him in battle, By pouring out a mount, and in building a fortification, To cut off many souls.