 Some modern scholars identify the group, or groups, with God-fearers, non-Jewish (gentile) sympathizers with Second Temple Judaism.However, others believe these God-fearers to be a fictional invention of the Acts of the Apostles.The name "Hypsistarioi" first occurs in Gregory of Nazianzus (Orat., xviii, 5) and the name "Hypsistianoi" in Gregory of Nyssa (Contra Eunom., II), about 374 CE.