This seems to be what the first Christians did and it’s what we Catholics still do.Concerning baptism, baptize in this way. After you have spoken all these things, “baptize in the name of the Father, and of the Son, and of the Holy Spirit,” in running water. If you do not have running water, baptize in other water. If you are not able in cold, then in warm. If you do not have either, pour out water three times on the head “in the name of the Father, and of the Son, and of the Holy Spirit.