How about the Last Gospel of John for a vouchsafe that only Baptism by water will do?
The Last Gospel
St John unfolds the great mystery of the Incarnation.
1: In the beginning was the Word, and the Word was with God, and the Word was God. 2: He was in the beginning with God; 3: all things were made through him, and without him was not anything made that was made. 4: In him was life, and the life was the light of men. 5: The light shines in the darkness, and the darkness has not overcome it. 6: There was a man sent from God, whose name was John. 7: He came for testimony, to bear witness to the light, that all might believe through him. 8: He was not the light, but came to bear witness to the light. 9: The true light that enlightens every man was coming into the world. 10: He was in the world, and the world was made through him, yet the world knew him not. 11: He came to his own home, and his own people received him not. 12: But to all who received him, who believed in his name, he gave power to become children of God; 13: who were born, not of blood nor of the will of the flesh nor of the will of man, but of God. 14: And the Word became flesh and dwelt among us, full of grace and truth; we have beheld his glory, glory as of the only Son from the Father.