Jamieson, Fausset and Brown on Daniel 9:23

23. At the beginning of thy supplications, &c.--The promulgation of the divine decree was made in heaven to the angels as soon as Daniel began to pray.

came forth--from the divine throne; so Da 9:22.

thou art greatly beloved--literally, "a man of desires" (compare Eze 23:6, 12); the object of God's delight. As the apocalyptic prophet of the New Testament was "the disciple whom Jesus loved," so the apocalyptic prophet of the Old Testament was "greatly beloved" of God.

the vision--the further revelation as to Messiah in connection with Jeremiah's prophecy of seventy years of the captivity. The charge to "understand" is the same as in Mt 24:15, where Rome primarily, and Antichrist ultimately, is referred to (compare Note, see on Da 9:27).