Then Barak pursued the chariots and army as far as Harosheth-hagoyim, and the whole army of Sisera fell by the sword; not a single man was left.
Here, I. Barak beats up for volunteers, and soon has his quota of men ready, Jdg 4:10. Deborah had appointed him to raise an army of 10,000 men (Jdg 4:6), and so many he has presently at his feet, following him, and subject to his command. God is said to call us to his feet (Isa 41:2), that is, into obedience to him.
Commenting on Judges 4:10-16
But Barak pursued after the chariots, and after the host, unto Harosheth of the Gentiles,.... The place from whence they came, and to which they endeavoured to escape: but he followed them, so close all that way, and made such havoc of them, that all the host of Sisera fell upon the edge of the sword, and there was not a man left; no, not...
But Barak pursued . . . unto Harosheth--Broken and routed, the main body of Sisera's army fled northward; others were forced into the Kishon and drowned (see on Jdg 5:21).