'Stretched out arm' in the Bible

Thus do ye say unto your lords, I -- I have made the earth with man, and the cattle that are on the face of the earth, by My great power, and by My stretched-out arm, and I have given it to whom it hath been right in Mine eyes.

'Ah, Lord Jehovah, lo, Thou hast made the heavens and the earth by Thy great power, and by Thy stretched-out arm; there is nothing too wonderful for Thee:

'And Thou bringest forth Thy people Israel from the land of Egypt, with signs and with wonders, and by a strong hand, and by a stretched-out arm, and by great fear,