Who gave David power to defeat Goliath?

God gave David power to defeat Goliath.

The men in Israel's army were afraid of Goliath, the mighty Philistine warrior. Nobody would fight him. But God gave David power to beat Goliath. David reminds us of Jesus. Jesus came to save us from our biggest enemies: sin and death. Jesus is the hero who saves us so we can live with Him forever in heaven.