'Mighty' in the Bible

For I have bent Judah for me, I have filled the bow with Ephraim; and I will stir up thy sons, O Zion, against thy sons, O Greece, and will make thee as the sword of a mighty man.

And they shall be as mighty men, treading down their enemies in the mire of the streets in the battle; and they shall fight, because Jehovah is with them; and the riders on horses shall be confounded.

And they of Ephraim shall be like a mighty man, and their heart shall rejoice as through wine; yea, their children shall see it, and rejoice; their heart shall be glad in Jehovah.