Baptism (Baptiz o in Hebrew/Greek) - means to immerse, submerge, wash with water
in token of purification from sin and from spritual pollution.
Baptism of Jesus
Jesus replied, Let it be so now; it is proper for us to do this to fulfill all righteousness." Then Jesus consented. As soon as Jesus was baptized, He went up out of the water. At that moment heaven was opened, and He saw the spirit of GOD descending like a dove and lighting on Him. And a voice from heaven said, "This is my Son, whom I love; with Him I am well pleased."