“spirit of God.” This is the gift of holy spirit that God put upon believers in the Old Testament so they could do the works of God. It is not a “person,” but the very nature of God; holy and spirit. It is referred to as the finger of God in Luke 11:20. (See commentary on Luke 11:20. See also, Graeser, Lynn, Schoenheit, The Gift of Holy Spirit: The Power to Be Like Christ).