'Powerful' in the Bible

John answered them all, "I baptize you with water, but one more powerful than I am is coming -- I am not worthy to untie the strap of his sandals. He will baptize you with the Holy Spirit and fire.

He said to them, "What things?" "The things concerning Jesus the Nazarene," they replied, "a man who, with his powerful deeds and words, proved to be a prophet before God and all the people;