'Arm' in the Bible

He has done a mighty deed with his arm; he has dispersed the proud in the thoughts of their hearts.

in order that the word of the prophet Isaiah would be fulfilled, who said, "Lord, who has believed our message? And to whom has the arm of the Lord been revealed?"

The God of this people Israel chose our fathers and exalted the people during [their] stay in the land of Egypt, and with uplifted arm he led them out of it.