'Strengthen' in the Bible

I will strengthen the arms of the king of Babylon, and I will place my sword in his hand, but I will break the arms of Pharaoh, and he will groan like the fatally wounded before the king of Babylon.

I will strengthen the arms of the king of Babylon, but the arms of Pharaoh will fall limp. Then they will know that I am the Lord when I place my sword in the hand of the king of Babylon and he extends it against the land of Egypt.

I will seek the lost and bring back the strays; I will bandage the injured and strengthen the sick, but the fat and the strong I will destroy. I will feed them -- with judgment!