Verse 12
that when
A permanent method in the divine government of the earth. Israel is always the centre of the divine counsels earthward Deuteronomy 32:8. The Gentile nations are permitted to afflict Israel in chastisement for her national sins, but invariably and inevitably retribution falls upon them. See; Genesis 15:13; Genesis 15:14; Deuteronomy 30:5-7; Isaiah 14:1; Isaiah 14:2; Joel 3:1-8; Micah 5:7-9; Matthew 25:31-40.
Verse 20
that day
"That day": often the equivalent of "the day of the Lord" Isaiah 2:10-22; Revelation 19:11-21. The prophecy here passes from the general to the particular, from historic and fulfilled judgments upon Assyria to the final destruction of all Gentile world-power at the return of the Lord in glory. (See "Armageddon,"; Revelation 16:14; Revelation 19:21 "Times of the Gentiles,"; Luke 21:24; Revelation 16:19, "The great tribulation,"; Psalms 2:5; Revelation 7:14, and (See Scofield "Isaiah 13:19")