Baptism is a symbol of our adoption.
Baptism is a sign that we have been adopted into the family of God. The Father, Son, and Holy Spirit have had a perfect and unified love from before creation and in the baptism of Jesus Christ we see all three persons of God actively involved (Matthew 3:16). As Jesus is brought up from the water we hear God proclaim “This is my Beloved Son, with whom I am well pleased (Matthew 3:17). Now when we are baptized, because of Jesus Christ, we can know that we are also children of God (Galatians 3:16) and beloved by the Father. Baptism says “I belong to God.”