Someone asked me; "You must be a baptist church for full immersion...? No we are not, we are just following what scripture teaches us. Jesus was baptized at 30 and then began his public ministry. Romans 10:9 States if we confess with our lips Jesus is Lord, and believe God raised Him from the dead... you are saved!"
So in other words, the person being baptized isn't saved by the act of baptism, but by boldly, consciously placing their faith in Jesus Christ... and then becoming baptized because of that belief. Jesus said GO... go and make disciples of ALL nations, baptizing them in the name of the Father and the Son and the Holy Spirit.