'Mightily' in the Bible

And the children of Israel cried unto Jehovah: for he had nine hundred chariots of iron; and twenty years he mightily oppressed the children of Israel.

And the Spirit of Jehovah came mightily upon him, and he rent him as he would have rent a kid; and he had nothing in his hand: but he told not his father or his mother what he had done.

And the Spirit of Jehovah came mightily upon him, and he went down to Ashkelon, and smote thirty men of them, and took their spoil, and gave the changes of raiment unto them that declared the riddle. And his anger was kindled, and he went up to his father's house.

When he came unto Lehi, the Philistines shouted as they met him: and the Spirit of Jehovah came mightily upon him, and the ropes that were upon his arms became as flax that was burnt with fire, and his bands dropped from off his hands.