According to Turner, Sethianism was influenced by Christianity and Middle Platonism, and originated in the second century as a fusion of a Jewish baptizing group of possibly priestly lineage, the so-called "Barbeloites", named after Barbelo, the first emanation of the Highest God, and a group of Biblical exegetes, the "Sethites", the "seed of Seth". At the end of the second century, Sethianism grew apart from the developing Christian orthodoxy, which rejected the docetian view of the Sethians on Christ. In the early third century, Sethianism was fully rejected by Christian heresiologists, as Sethianism shifted toward the contemplative practices of Platonism while losing interest in their primal origins. In the late third century, Sethianism was attacked by neo-Platonists like Plotinus, and Sethianism became alienated from Platonism. In the early- to mid-fourth century, Sethianism fragmented into various sectarian Gnostic groups such as the Archontics, Audians, Borborites, and Phibionites, and perhaps Stratiotici, and Secundians. Some of these groups existed into the Middle Ages.