'Strength' in the Bible

They are your servants and your people, whom you have redeemed by your mighty strength and by your powerful hand.

Then those in Judah said, "The strength of the laborers has failed! The debris is so great that we are unable to rebuild the wall."

He said to them, "Go and eat delicacies and drink sweet drinks and send portions to those for whom nothing is prepared. For this day is holy to our Lord. Do not grieve, for the joy of the LORD is your strength."