Baptism & the Lord's Supper:

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 Saviour, the believer's death to sin, the burial of the old life, and the resurrection to walk in newness of life in Christ Jesus.

The Lord's Supper is a symbolic act of obedience whereby members … memorialize the death of the Redeemer and anticipate His second coming.