In short
Baptism
By baptism we confess our faith in the death and resurrection of Jesus and show that we have died to sin and want to walk in a new life. It follows repentance and faith, and is by immersion in water.
Read it in the Bible
Romans 6:1-6; Colossians 2:12, 13; Acts 2:38; 16:30-33; Matthew 28:19, 20
This is a short summary. The church's full statements are at adventist.org, and our pastors are glad to study any belief with you.