THE RULES OF MODERN ENGLISH COMPOSITION...........
Daniel 9:25-27 was written by the Jewish prophet Daniel long before the rules of modern English composition were formulated and put into practice. Therefore if your understanding of Daniel 9:25-27 is according to the rules of modern English composition you are setting yourself up for a great misunderstanding of who the pronoun "he" in Daniel 9:27 is referring to.
The pronoun "he" in Daniel 9:27 is referring to "Messiah" who is spoken of in Daniel 9:26.
Come Lord Jesus !