'Mightily' in the Bible

For he mightily convinced the Jews, and that publickly, shewing by the scriptures that Jesus was Christ.

So mightily grew the word of God and prevailed.

Whereunto I also labour, striving according to his working, which worketh in me mightily.

And he cried mightily with a strong voice, saying, Babylon the great is fallen, is fallen, and is become the habitation of devils, and the hold of every foul spirit, and a cage of every unclean and hateful bird.