C. F. Keil and Franz Delitzsch on Daniel 7:27

Dan 7:27

After the destruction of the beast, the kingdom and the dominion, which hitherto comprehended the kingdom under the whole heaven, are given to the people of God, i.e., under the reign of the Son of man, as is to be supplied from Dan 7:14. As in Dan 7:26 nothing is further said of the fate of the horn, because all that was necessary regarding it had been already said (Dan 7:11), so also all that was to be said of the Son of man was already mentioned in Dan 7:13 and Dan 7:14; and according to the representation of the Scripture, the kingdom of the people of the saints without the Son of man as king is not a conceivable idea. מלכות דּי (of the kingdom) is a subjective genitive, which is required by the idea of the intransitive רבוּתא (the greatness) preceding it. The meaning is thus not “power over all kingdoms,” but “the power which the kingdoms under the whole heaven had.” With regard to Dan 7:27, cf. Dan 7:14 and Dan 7:18.