---- Baptism-When you dunk somebody in water to represent that you are a believer of god.

Because that is how it was done in the Bible.

One obvious religious belief would come from the name Anabaptist itself. Which means to Baptize again. Anabaptist did not believe in infant water baptism but in believer water baptism. They hold that baptism is an act of obedience to Christ on the part of the believer and not an act of obedience to Christ on the part of the parents.

So they practiced believer water baptism, to their own peril, at the time of the early reformation (1500's) when infant water baptism was widely held and practiced as a sacrament of the church. Withholding baptism from your infant children was a grave mortal sin on par with condemning your children to Hell should they die before being baptized.

Anabaptism is still held today by members of the various Baptist and Mennonite churches. Anabaptism has come to mean more the practice of believer water baptism.

What baptism are you talking about? Infant baptism? Baptism of believers?

Well the answer is much the same. Nothing happens to your sin when you are baptized.

If you are a believer your sin is already dealt with before you get baptized. A believers baptism is a sign of the believers identifying with Christ in that Christ was buried and rose again the believer is buried (in water) and rises again to a new life.

Infant baptism??? well there is nothing in the Bible that teaches infant baptism.

If you refer to Believer's Baptism, as practiced in Baptist churches, it is symbolic cleansing and rebirth into new life in Christ Jesus.