Obadja 1:21

Edom's Ruin, setting forth, in the first place, the purpose of God to make Edom small through the medium of hostile nations, and to hurl it down from the impregnable heights of its rocky castles (Oba 1:1-4); and then depicting, in lively colours, how it will be plundered by enemies, forsaken and deceived by allies and friends, and perish in helplessness and impotence (Oba 1:5-9). Oba 1:1 contains, in addition to the brief heading, the introduction to the prophecy, which gives in a brief form the substance of the first section: "Thus hath the Lord Jehovah spoken of Edom, A report have we heard from Jehovah, and a messenger is sent among the nations: Up, and let us arise against it in battle." The first clause, לאדום ... כּה אמר, does not harmonize with what follows, inasmuch as we should expect it to be followed with a declaration made by Jehovah Himself, instead of which there follow simply tidings heard from Jehovah. The difficulty cannot be removed by assuming that these introductory words are spurious, or were added by a later prophet (Eichhorn, Ewald, and others); for the interpolator could not fail to observe the incongruity of these words just as well as Obadiah. Moreover, לאדום could not be omitted from the opening, because it is required not only by the suffix in עליה (against her), but also by the direct addresses in Oba 1:2. Nor is the assumption that the prophet suddenly altered the construction any more satisfactory, or that the declaration of Jehovah announced in כּה אמר וגו ("thus saith the Lord") commences in Oba 1:2, and that the words from שׁמוּעה to the end of the verse form an explanatory parenthesis to כּה אמר וגו ot sisehtnera. For such an alteration of the construction at the very beginning of the address is hardly conceivable; and the parenthetica…

Edom is the nation against which this prophecy is levelled, and which, some think, is put for all the enemies of Israel, that shall be brought down first or last. The rabbin by Edom understand Rome. Rome Christians they understand it of, and have an implacable enmity to it a such; but, if we understand it of Rome antichristian, we shall find the passages of it applicable enough. And though Edom was mortified in the times of the Maccabees, as it had been before by Jehoshaphat, yet its destruction seems to have been typical, as their father Esau's rejection, and to have had further reference to the destruction of the enemies of the gospel-church; for so shall all God's enemies perish; and we find (Isa 34:5) the sword of the Lord coming down upon Idumea, to signify the general day of God's recompences for the controversy of Zion, Oba 1:8. Some have well observed that it could not but be a great temptation to the people of Israel, when they saw themselves, who were the children of beloved Jacob, in trouble, and the Edomites, not only prospering, but triumphing over them in their troubles; and therefore God gives them a prospect of the destruction of Edom, which should be total and final, and of a happy issue of their own correction. Now we may observe here, I. A declaration of war against Edom, (Oba 1:1): "We have heard a rumour, or rather an order, from the Lord, the God of hosts; he has given the word of command; it is his counsel and decree, which can neither be reversed nor resisted, that all who do mischief to his people shall certainly bring mischief upon themselves. We have heard a report that God is raised up out of his holy habitation, and is preparing his throne for judgment; and an ambassador is sent among the heathen," a herald rather, some minister or messenger…

1:21 to Mount Zion: God’s people would ascend his holy mountain to rule over (or to judge) the mountains of their ancient foe Edom as a precursor to the coming universal Kingdom.