isaiah 25:7 And he will destroy in this mountain the face of the covering cast over all people, and the vail that is spread over all nations. - Free Bible Online

      7. face of . . . covering--image from mourning, in which it was usual to cover the face with a veil (2Sa 15:30). "Face of covering," that is, the covering itself; as in Job 41:13, "the face of his garment," the garment itself. The covering or veil is the mist of ignorance as to a future state, and the way to eternal life, which enveloped the nations (Eph 4:18) and the unbelieving Jew (2Co 3:15). The Jew, however, is first to be converted before the conversion of "all nations"; for it is "in this mountain," namely, Zion, that the latter are to have the veil taken off (Ps 102:13, 15, 16, 21, 22; Ro 11:12).

JFB.