When Barak attacked with his army, the Lord threw Sisera into confusion together with all his chariots and men. Sisera got down from his chariot and fled on foot.” (Judges 4:15, GNB)

Barak attacked…the Lord threw Sisera into confusion.  This is a good juxtaposition of how God works in the lives of men. Barack had to do something, he had to attack before God was going to work, but when he attacked, the Scripture assigns glory for the annihilation of Sisera and his men to the Lord, and not to Barak.

Matthew Henry writes:

It was not so much the bold and surprising alarm which Barak gave their camp that dispirited and dispersed them, but God’s terror seized their spirits and put them into an unaccountable confusion.

We work; God accomplishes the work.