In this regard see, for example, Alan Segal, Two Powers in Heaven, Early Rabbinic Reports about Christianity and Gnosticism (Leiden: Brill, 1977); Maurice Casey, From Jewish Prophet to Gentile God, The Origins and Development of New Testament Christology (Louisville: Westminster/John Knox, 1991); Jarl Fossum, The Name of God and the Angel of the Lord, Samaritan and Jewish Concepts of Intermediation and the Origin of Gnosticism (Tübingen: Mohr, 1985); Gabrielle Boccaccini, Middle Judaism, Jewish Thought, 300 B.C.E.-200 C.E. (Minneapolis: Fortress, 1991).