Spiritual Cleansing: Water represents the washing away of past sins and a spiritual rebirth.
Union with Christ: Being submerged in or washed with water represents "dying" to an old way of life and "rising" to new life in Christ.
Public Declaration: It is an outward expression of an inward change, marking the believer's entrance into the global Christian church.
Obedience: Christians practice it in obedience to Jesus’s final command to his disciples to baptize followers in the name of the Father, the Son, and the Holy Spirit.