Charles Ellicott Commentary Daniel 10:21

"But I will tell thee that which is inscribed in the writing of truth: and there is none that holdeth with me against these, but Michael your prince." — Daniel 10:21 (ASV)

But. —A further contrast is introduced by the adversative. This may be brought out by paraphrasing the verse as follows: “It is true that the prince of Javan will attack you, but do not despair at the thought of one persecuting empire succeeding another. It is all written in the Scripture of truth:” that is, in the revelations which God had already conveyed, or shortly would convey, to Daniel, and in the book of Providence (Psalms 139:16). We have here a striking parallel to our Saviour’s words, “Lo, I have told you before.”

And there is none ...—A still further ground of encouragement. Michael, who stood up as Israel’s champion under the Persian troubles, will prove himself strong against the evil powers which lead Javan.