Jamieson, Fausset and Brown on Isaiah 18:7

7. present ... people scattered and peeled--For the right rendering, see on Is 18:2. The repetition of epithets enhances the honor paid to Jehovah by so mighty a nation. The Ethiopians, wonder-struck at such an interposition of Jehovah in behalf of His people, shall send gifts to Jerusalem in His honor (Is 16:1; Psa 68:31; 72:10). Thus translate: "a present ... from a people." Or translate, as English Version; "the present" will mean "the people" of Ethiopia converted to God (Ro 15:16). Horsley takes the people converted to Jehovah, as the Jews in the latter days.

place of the name--where Jehovah peculiarly manifests His glory; Ac 2:10 and 8:27 show how worshippers came up to Jerusalem from Egypt" and "Ethiopia." Frumentius, an Egyptian, in the fourth century, converted Abyssinia to Christianity; and a Christian church, under an abuna or bishop, still flourishes there. The full accomplishment is probably still future.