'Arm' in the Bible

'And also, unto the stranger who is not of Thy people Israel, and he hath come from a land afar off for the sake of Thy great name, and Thy strong hand, and Thy stretched-out arm, and they have come in and prayed towards this house:

With him is an arm of flesh, and with us is Jehovah our God, to help us, and to fight our battles;' and the people are supported by the words of Hezekiah king of Judah.