While baptism is not part of salvation, it is an important step of obedience to Christ.
Then they that gladly received his word were baptized: and the same day there were added unto them about three thousand souls. (Acts 2:41)
Identification
The Bible teaches that baptism is a symbol of your salvation. Baptism shows obedience to God and declares to others your faith in Christ.
Immersion
The Bible teaches that you should be baptized in water by immersion rather than by sprinkling. Because baptism is a picture of Christ’s death, burial, and resurrection, only immersion correctly pictures this.