Make bright the arrows; prepare the arrows for fighting, whether by feathering, sharpening, or polishing and cleansing of them, is not much material. Gather the shields; you that are Chaldeans, gather all the shields you have together, you will have need of them all: or, you that are the enemies of the Chaldeans, gather you together your shields. For God hath put a spirit into Cyrus and Darius, &c., and his design is against Babylon to destroy it. It is a day in which God is resolved to take vengeance on Babylon, to take vengeance for the indignities they have offered to, and the horrible profanation of, his temple.
Related Commentaries of Jeremiah 51:11
Jeremiah 51:11
11 Make brightb the arrows; gather the shields: the LORD hath raised up the spirit of the kings of the Medes: for his device is against Babylon, to destroy it; because it is the vengeance of the LORD, the vengeance of his temple.