'Arrows' in the Bible

Indeed, I'm going to stir up and bring against Babylon a great company of nations from the land of the north. They'll deploy for battle against her, and from there she will be captured. Their arrows will be like a skilled warrior; they won't miss their targets.

Deploy the troops all around Babylon. All who bend the bow, shoot at her and spare no arrows, for she has sinned against the LORD.

Sharpen the arrows, fill the quivers! The LORD has stirred up the spirit of the kings of the Medes he has decided to destroy Babylon. Indeed, it's the LORD's vengeance, vengeance for his Temple.