Significant portions of the New Testament were dedicated to teaching the mode, purpose, and spiritual implications of baptism. Baptism is given by Jesus as a divine command and every person who became a Christian in the New Testament was baptized. Believers are immersed as an act of obedience, trusting that God will be at work in this act. Baptism is not an act performed to win God's approval or earn salvation. Rather it is an act God performs on those who fully acknowledge his Lordship, as demonstrated when they submit their bodies for burial. The works of God associated with baptism in the Bible include forgiveness of sin, the gift of the Holy Spirit, the removal of the sinful nature, membership in his church, being clothed with Christ and being given the chance to begin a new life.
1 Peter 3:21
1 Corinthians 12:13