Jewish theology
''In Judaism, the idea of God as a duality or trinity is heretical — it is even considered by some polytheistic. According to Judaic beliefs, the Torah rules out a trinitarian God in Deuteronomy (6:4): "Hear Israel, the Lord is our God, the Lord is one."
''What the Bible generally calls "Spirit of God" is called in the Talmud and Midrash "Holy Spirit" due to the disinclination to the use of the Tetragrammaton.[8] It is probably owing to this fact that the Shekhinah is often referred to instead of the Holy Spirit. It is said of the former, as of the Holy Spirit, that it rests upon a person. The difference between the two in such cases has not yet been determined.
Although the Holy Spirit is often named instead of God,[9] it was conceived as being something distinct. The Spirit was among the ten things that were created on the first day.[10] Though the nature of the Holy Spirit is really nowhere described, the name indicates that it was conceived as a kind of wind that became manifest through noise and light. As early as Ezekiel 3:12 it is stated, "the spirit took me up, and I heard behind me a voice of a great rushing," the expression "behind me" characterizing the unusual nature of the noise. The Shekhinah made a noise before Samson like a bell.[11] When the Holy Spirit was resting upon him, his hair gave forth a sound like a bell, which could be heard from afar. It imbued him with such strength that he could uproot two mountains and rub them together like pebbles, and could cover leagues at one step.[12]''
