'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.

Alas, Lord Jehovah! Behold, thou hast made the heavens and the earth by thy great power and stretched-out arm; there is nothing too hard for thee:

And thou broughtest forth thy people Israel out of the land of Egypt by signs, and by wonders, and by a powerful hand, and by a stretched-out arm, and by great terror;