'Mightily' in the Bible

The waters covered [all of] the earth for a hundred and fifty days (five months).

The Lord has greatly blessed my master, and he has become great (wealthy, powerful); He has given him flocks and herds, and silver and gold, and servants and maids, and camels and donkeys.

The Spirit of the Lord came upon him mightily, and he tore the lion apart as one tears apart a young goat, and he had nothing at all in his hand; but he did not tell his father or mother what he had done.

When he came to Lehi, the Philistines came shouting to meet him. And the Spirit of the Lord came upon him mightily, and the ropes on his arms were like flax (linen) that had been burned, and his bonds dropped off his hands.

And Samson said, “Let me die with the Philistines!” And he stretched out with all his might [collapsing the support pillars], and the house fell on the lords and on all the people who were in it. So the dead whom he killed at his death were more than those whom he had killed during his life.

Then the Spirit of the Lord will come upon you mightily, and you will prophesy with them, and you will be changed into another man.

When they came to the hill [Gibeah], behold, a group of prophets met him; and the Spirit of God came on him mightily, and he prophesied [under divine guidance] among them.

The Spirit of God came upon Saul mightily when he heard these words, and he became extremely angry.

Then Samuel took the horn of oil and anointed David in the presence of his brothers; and the Spirit of the Lord came mightily upon David from that day forward. And Samuel arose and went to Ramah.

Now it came about on the next day that an evil spirit from God came forcefully on Saul, and he raved [madly] inside his house, while David was playing the harp with his hand, as usual; and there was a spear in Saul’s hand.

Then Saul said to David, “May you be blessed, my son David; you will both accomplish much and certainly prevail.” So David went on his way, and Saul returned to his place.

They [the stricken, deprived of all in which they had trusted] will go into the caves of the rocksAnd into the holes of the ground [fleeing]From the terror and dread of the LordAnd from the splendor of His majesty,When He arises to terrify the earth.

To go into the caverns of the rocks and into the clefts of the [ragged] cliffs [as they flee]From the terror and dread of the Lord and the splendor of His majesty,When He arises to terrify the earth.

He will cut down the thickets of the forest with an iron axe,And Lebanon (the Assyrian) will fall by the Mighty One.

The Lord will go forth like a warrior,He will stir up His zeal like a man of war;He will shout out, yes, He will raise a war cry.He will prevail [mightily] against His enemies.

“Therefore prophesy all these words against them and say to them:‘The Lord will roar from on highAnd utter His voice from His holy dwelling;He will roar mightily against His fold and pasture.He will jubilantly shout like those who tread the grapes [in the wine press],Against all the inhabitants of the earth.

The king called aloud to bring in the enchanters (Magi), the Chaldeans [who were master astrologers] and the diviners. The king said to the wise men of Babylon, “Whoever can read this writing and explain its interpretation to me shall be clothed with purple and have a chain of gold put around his neck, and have authority as the third ruler in the kingdom.”

But both man and animal must be covered with sackcloth; and every one is to call on God earnestly and forcefully that each may turn from his wicked way and from the violence that is in his hands.

The one who scatters has come up against you [Nineveh].Man the fortress and ramparts, watch the road;Strengthen your back [prepare for battle], summon all your strength.

So the word of the Lord [concerning eternal salvation through faith in Christ] was growing greatly and prevailing.

For this I labor [often to the point of exhaustion], striving with His power and energy, which so greatly works within me.