Baptism

Christian baptism is the immersion of a believer in water. …It is an act of obedience symbolizing the believer's faith in a crucified, buried, and risen Savior, the believer's death to sin, the burial of the old life, and the resurrection to walk in newness of life in Christ Jesus.

"In the world you will have tribulation. But take heart; I have overcome the world" John 16:33