The children of Israel saw God deliver them from the power of Pharoah who had made them his slaves. God sent Moses to Pharoah to ask him to let the Lord’s people go free to worship Him. Pharoah scorned Moses for asking that and made the people of Israel work even harder. Eventually after plagues even to the death of the eldest sons of Egypt Pharoah let them go.
The Dead Sea opened up for them to leave Egypt. God appeared to them in the desert in a pillar of fire by night and a cloud by day. God was with them and set them free to worship Him. He set them apart as his own people. He gave them guidelines on how to live.
So the people who saw God’s wonders obeyed God and their leaders, Joshua snd Moses. But after they died the next generation did not continue to obey or worship God. They worshiped the gods of the people around them. God gave them over to their enemies who oppressed them. This new generation had to learn how to deal with their enemies.
Judges 3 v 2 says He did this to teach warfare to generations of Israelites who had no experience in battle.
We are God’s people who believe in Jesus. Are we often like the Israelites who forgot God? We know his mercy to deliver us out of bondage but we soon forget his goodness and go our own way serving other gods who take our time, money and energy.
Some of us have seen his miracles of healing and deliverance. But we soon forget. We don’t want to fight. But with God’s help we can defeat our enemies. So they come back to rob, steal and destroy us. There is no middle ground. As Bob Dylan said you got to serve somebody. It may be the devil, it may be the Lord but you got to serve somebody.
Jesus said in Luke 21 v 34. Watch out. Don’t let me catch you in careless ease and drunkenness. Keep a constant watch and pray. Jesus is returning soon. Don’t be like the five foolish virgins who weren’t ready when the bridegroom returned.
Read God’s Word and pray in the Holy Spirit often. You have to fight so you don’t loose the ground you have taken.