'''Gabriel ibn Khalifah al-Kalbi''' was the twin brother of [[Dihyah ibn Khalifah al-Kalbi]] as sons of the Proto-Karaite Mamed [[Khalifah Nehemiah ben Hushiel]]. He was a [[Proto-Karaite]] who ran a Noahite mission for the Alid [[Messianic Mithreans]]in Persia.