ON (NHC I, 4)

A Valentinian Gnostic in the form of a letter written by an unnamed Valentinian Gnostic teacher to his “son” Rheginos (otherwise unknown).

Its title is given at the end of the treatise. The letter teaches that is not physical but spiritual; those who are in possession of have already been “resurrected.” Preserved only in Coptic, on was originally composed in Greek, probably late in the second century. Its provenience is unknown, but it could have been composed in Egypt.