but don't stay; pursue after your enemies, and strike the hindmost of them; don't allow them to enter into their cities: for Yahweh your God has delivered them into your hand.
As believers experience increasing success in our spiritual warfare, we normally experience increasing opposition from our spiritual enemies, as Israel did. Still, the Lord fights alongside His people (2 Corinthians 12:9). We have responsibilities to secure victory (e.g., trust, obedience, using our resources, etc.; cf. Ephesians 6:14-18). The Lord also provides assistance naturally and supernaturally. He enables us to use the strength, wisdom, and endurance He has given us. He also does things we cannot possibly do for ourselves. He gave the Israelite army extra light and sent hail from the sky. He gives us material gifts, He changes the hearts of people, and He opens up new opportunities for us, to name a few of His mighty acts.