Terms of Salvation By His grace , God who loved the world has provided salvation for mankind. This was accomplished by the sacrificial death of His Son, Jesus Christ, on the cross. This is alluded to in the Bible. John baptized near non where there where there was much water. When Philip baptized the Ethiopian Eunuch, they both went down into the water.
Baptism is depicted as a burial.
John, the forerunner of Jesus, began the practice. Jesus set the example. It is preceded by belief and repentance. Therefore infants can not be scripturally baptized. It is for salvation, the remission of sins , to wash away sins , to participate in the death of Christ , to put on Christ and it is how one calls upon the name of the Lord.