Book of Truth (literally writing of truth): The messenger spoke not of himself but from what was written in God’s Book of Truth. Compare God’s book in Daniel 7:9–10; Exodus 32:32–33. See also Daniel 12:1; Psalm 139:16. The Book of Truth contains what is revealed in Daniel 11:2–12:7.
against these, except Michael your prince: God divided the nations and assigned them their princes (Deuteronomy 32:8). God was over Israel, and Michael was Israel’s spirit prince.