'Strength' in the Bible

And Abner said to Joab, Let the young men give a test of their strength before us. And Joab said, Let them do so.

While I, though I am crowned king, have little strength, and these men, the sons of Zeruiah, are out of my control: may the Lord give to the evil-doer the reward of his evil-doing!

And David, clothed in a linen ephod, was dancing before the Lord with all his strength.

For I have been armed by you with strength for the fight: you have made low under me those who came out against me.