'Mighty' in the Bible

'Men, Israelites! hear these words, Jesus the Nazarene, a man approved of God among you by mighty works, and wonders, and signs, that God did through him in the midst of you, according as also ye yourselves have known;

and Simon also himself did believe, and, having been baptized, he was continuing with Philip, beholding also signs and mighty acts being done, he was amazed.

And a certain Jew, Apollos by name, an Alexandrian by birth, a man of eloquence, being mighty in the Writings, came to Ephesus,

mighty works also -- not common -- was God working through the hands of Paul,