Verse 21. - And the rough goat is the King of Grecia; and the great horn that is between his eyes is the first king. Again all the versions agree in omitting the word "rough," and in inserting "of the goats," as in the fifth verse. The authority of these is much too great to be resisted. The Massoretic reading is probably due to a confluence of readings, as the word translated "rough" also means "goats." The omission of the word "of the goats" is probably due to the inclusion of שָׂעִיר (sa'eer). Here, as in the previous case, "king" stands for dynasty; and this is proved by the fact that there is implied a series of kings, of whom the great horn is the first.

8:15-27 The eternal Son of God stood before the prophet in the appearance of a man, and directed the angel Gabriel to explain the vision. Daniel's fainting and astonishment at the prospect of evils he saw coming on his people and the church, confirm the opinion that long-continued calamities were foretold. The vision being ended, a charge was given to Daniel to keep it private for the present. He kept it to himself, and went on to do the duty of his place. As long as we live in this world we must have something to do in it; and even those whom God has most honoured, must not think themselves above their business. Nor must the pleasure of communion with God take us from the duties of our callings, but we must in them abide with God. All who are intrusted with public business must discharge their trust uprightly; and, amidst all doubts and discouragements, they may, if true believers, look forward to a happy issue. Thus should we endeavour to compose our minds for attending to the duties to which each is appointed, in the church and in the world.And the rough goat is the king of Grecia,.... Including all the kings of it, from Alexander to the end of the Grecian monarchy; or rather the kingdom of Greece, which began in him, and continued until it was destroyed by the Romans: this was signified by the rough or hairy goat, especially when Alexander was at the head of it, for his strength and prowess, his swiftness in his marches over rocks and mountains, his majesty and grandeur, and also his lust and uncleanness; See Gill on Daniel 8:5,

and the great host that is between his eyes is the first king; this is Alexander, who, though he was not the first king of Macedon, his father Philip, and others, were kings before him; yet was the first king of the Grecian monarchy, which took place on the Persian monarchy being destroyed by him.