Commonly entitled “On the Passover,” the sermon survives in numerous copies and fragments in Coptic, Greek, Syriac, Latin and Georgian. The oldest copy, from the third or early fourth century, is in Coptic. See James E. Goehring and William W. Willis, “On the Passover by Melito of Sardis,” in The Crosby-Schoyen Codex MS 193, James E. Goehring, ed. (Leuven [Louvain]: Peeters, 1999).