The Lord raised up Gideon, knowing that he knew what to do as a military commander, which included striking the enemy at the right time, and to continue the strike until the enemy fell completely,

Now Zebah and Zalmunna were at Karkor, and their armies with them, about fifteen thousand, all who were left of all the army of the people of the East; for one hundred and twenty thousand men who drew the sword had fallen. Then Gideon went up by the road of those who dwell in tents on the east of Nobah and Jogbehah; and he attacked the army while the camp felt secure. When Zebah and Zalmunna fled, he pursued them; and he took the two kings of Midian, Zebah and Zalmunna, and routed the whole army (Judges 8.10–12).

Gideon and Israel had already reduced an army of 135,000 to 15,000, but Gideon did not quit. He moved on and struck the remainder of the army while it felt secure, and he defeated them completely.

Our enemy, the devil, shows no mercy, and so we must continue to fight him until we have defeated his forces on the Earth completely. Never give up fighting the good fight of the faith.