Barak was listed in Hebrews 11 as an example of faith, but his faith was very weak because it depended on someone else. He refused to go into battle at the command of the Lord unless Deborah, the prophetess, came with him. She agreed but informed him that the credit for the victory would not go to him
but to a woman. 

Barak gathered his army, and word got to Sisera, the general of the Canaanite army, that the Israelites were preparing for battle. He made the first move and, with his superior forces, tried to surround them quickly. God, however, was on Israel’s side and discomfited the army of the Canaanites. As Sisera’s army fled in terror, he found himself on foot, running for his life. He made his way to the Homestead of Heber, a family with whom they were at peace. Jael, the wife of Heber, hid him in her tent and gave him milk to drink and a comfortable place to sleep. While he slept, she took advantage of the opportunity and drove a spike through his head, ending his life.

From Barack, we learn the grace of God to give us victory even when our faith is weak. From Sisera, we learn the folly of trusting in our own strength, our own weapons, and our own ingenuity. The lesson is clear from both. Only by trusting God will we have victory.