'Arms' in the Bible

For I have made Judah a bow bent for my use, I have made Ephraim the arrows of the bow; I will make your sons, O Zion, take up arms against your sons, O Greece, and will make you like the sword of a man of war.

And one will say to him, ‘What are these wounds between your arms?’ Then he will say, ‘Those with which I was wounded in the house of my friends.’