3  Baptism, A command

Acts 10:48 King James Version (KJV)
48 And he commanded them to be baptized in the name of the Lord. Then prayed they him to tarry certain days.

Matthew 28:19 King James Version (KJV)
19 Go ye therefore, and teach all nations, baptizing them in the name of the Father, and of the Son, and of the Holy Ghost: