'Strength' in the Bible

He will assume his post and shepherd the people by the Lord's strength, by the sovereign authority of the Lord his God. They will live securely, for at that time he will be honored even in the distant regions of the earth.

You will eat, but not be satisfied. Even if you have the strength to overtake some prey, you will not be able to carry it away; if you do happen to carry away something, I will deliver it over to the sword.

Nations will see this and be disappointed by all their strength, they will put their hands over their mouths, and act as if they were deaf.