Obadiah 1:15

For the day of the Lord [is] near upon all the Heathen,.... That is, the time was at hand, fixed and determined by the Lord, and he had spoken of by his prophets, when he would punish all the Heathens round about for their sins; as the Egyptians, Philistines, Tyrians, Ammonites, Moabites, and others; and so the Edomites among the rest; for this is mentioned for their sakes, and to show that their punishment was inevitable, and that they could not expect to escape in the general ruin; see Jeremiah 25:17. This destruction of Edom here prophesied of, and of all the Heathen, was accomplished about five years after the destruction of Jerusalem, so that it might be truly said to be near; and some time within this space Obadiah seems to have prophesied; and the day of the Lord is not far off upon the Pagans, Mahometans, and all the "antichristian" states, When mystical Edom or Rome will be destroyed; see Revelation 16:19;

as thou hast done, it shall be done unto thee; thy reward shall return upon thine own head; this is particularly directed to Edom, upon whom the day of the Lord's vengeance shall come; when he punished the Heathens, then the Edomites should be retaliated in their own way; and as they had rejoiced at the destruction of the Jews, and had insulted them in their calamities, and barbarously used them, they should be treated in like manner; see Ezekiel 35:15; and thus will mystical Babylon, or the mystical Edomites, be dealt with, even after the same manner as they have dealt with the truly godly, the faithful professors of Christ, Revelation 18:6.