An immersion or sprinkling of water that signifies one's identification with a belief or cause. In Christianity it is the believer's identification with Christ in His death, burial, and resurrection (Rom. 6:4-54). It is done in the name and authority (Acts 4:7) of Christ with the baptismal formula of Father, Son, and Holy Spirit (Matt. 28:19). It does not save us (1 Pet. 3:21). However, it is our obligation, as believers, to receive it.