What is a valid baptism?

Baptism is valid when the individual being baptized has repented of his/her sins, has confessed that Christ is the Son of God and is fully immersed in water. The person doing the baptizing announces, as the individual goes down into the water that he "baptize you in the name of the Father, Son and Holy Ghost." As the individual rises out of the water it is as if he is born again, coming up a new person, his old sins washed away and the Holy Spirit enters his soul. And now why delay? Arise and be baptized and wash away your sins, calling on the name of the Lord (Acts 22:16).