I believe water baptisim is just an outer sign to the world, a public statement if you like of a change that has already happened within.
Mark 1
4 John came baptizing in the wilderness and preaching a baptism of repentance for the remission of sins. 5 Then all the land of Judea, and those from Jerusalem, went out to him and were all baptized by him in the Jordan River, confessing their sins.
6 Now John was clothed with camel’s hair and with a leather belt around his waist, and he ate locusts and wild honey. 7 And he preached, saying, “There comes One after me who is mightier than I, whose sandal strap I am not worthy to stoop down and loose. 8 I indeed baptized you with water, but He will baptize you with the Holy Spirit.”
All Praise The Ancient Of Days