David's life and his psalm in 2 Samuel 22 remind us that the Christian life is warfare. Unlike David, however, no person or tribe or country is our enemy; this world so filled with temptations, our sinful hearts, and the devil—these are our enemies. But David also reminds us that ultimately, the battle is the Lord's. We don't fight alone. The Lord of the universe, the King of creation, the God who is Father, Son, and Holy Spirit is with us and in us, in front of us, behind us, above us, and below us. He is our strength and our shield, our fortress and our deliverer!