'Strengthen' in the Bible

The Lord shatters his adversaries; he thunders against them from the heavens. The Lord executes judgment to the ends of the earth. He will strengthen his king and exalt the power of his anointed one."

Strengthen yourselves, and become men, O Philistines, lest ye do service to Hebrews, as they have done to you -- then ye have become men, and have fought.'

and David hath great distress, for the people have said to stone him, for the soul of all the people hath been bitter, each for his sons and for his daughters; and David doth strengthen himself in Jehovah his God.