The call to 'sharpen the arrows' and 'gather the shields' isn't just about military readiness. It signals a divine operation at play.
This verse opens with a powerful military command, but the real power isn't in the soldiers' hands.
Divine Mobilization
God isn't just observing the conflict; He's orchestrating it. The text explicitly states, 'The LORD has stirred up the spirit of the kings of the Medes.' This shows that human leaders and their armies are instruments in God's hands.
Preparation and Purpose
The commands to 'sharpen' and 'gather' speak to thorough preparation. These weren't just random acts of war, but a deliberate, divinely sanctioned campaign. God's 'device' or plan is against Babylon, and He mobilizes His agents to carry it out.