'Arrows' in the Bible

Their arrows give certain death, they are all men of war.

For see, I am moving and sending up against Babylon a band of great nations from the north country: and they will put their armies in position against her; and from there she will be taken: their arrows will be like those of an expert man of war; not one will come back without getting its mark.

Put your armies in position against Babylon on every side, all you bowmen; let loose your arrows at her, not keeping any back: for she has done evil against the Lord.

Make bright the arrows; take up the body-covers: the Lord has been moving the spirit of the king of the Medes; because his design against Babylon is its destruction: for it is the punishment from the Lord, the payment for his Temple.