Why is Christ referred to as our champion?

In the sermon, Christ is identified as our champion in the context of 1 Samuel 17, where David represents the ultimate victory over adversaries through faith. Goliath symbolizes the insurmountable challenges that confront humanity, yet Christ, as our designated champion, comes to defeat those very enemies. By becoming our surety, substitute, and redeemer, He accomplishes what we could not do ourselves—He conquers sin, death, and the accusations of Satan through His sacrificial death on the cross. Thus, our victory relies entirely on Christ, who won the battle for us.