Note 540 — Chapter V · PRE-CHRISTIAN GNOSTICS: THE ESSENES
Reading edition
Thus Irenaeus, Adv. Haer. Bk I. c. XII. § 11, p. 146, Harvey, makes Marcus the heresiarch show that Alpha and Omega, the name given to Jesus in Revelation, means the Dove which descended upon Him at His baptism, because it has the same numerical value (περιστερά) of 801.