2:8 Probably Zephaniah linked Moab and Ammon because both nations descended from Lot (Gen. 19:30-38) as well as because both lay to Judah's east. Both nations had taunted and reviled the Israelites from their earliest history. They had repeatedly lifted themselves up as enemies of God's chosen people (cf. Num. 22; 24:17; Judg. 3:12-14; 10:7-9; 11:4-6; 1 Sam. 11:1-11; 2 Sam. 10:1-14; 2 Kings 3).
2:9 Because of their hostility toward the Israelites, almighty Yahweh, Israel's God, would definitely destroy these nations as He had Sodom and Gomorrah (cf. Isa. 15-16; Jer. 48:1-49:22; Ezek. 25:1-14; 35; Amos 1:11-2:3). God had completely destroyed these cities that stood in the territory later occupied by Moab shortly before either of these nations came into existence (Gen. 19:23-29). Sodom and Gomorrah had become a notorious perpetual desolation, a place of salt pits where nothing but nettles grew (cf. Jer. 48:9), and that would be what Yahweh would make of Moab and Ammon. The remnant of Israelites would plunder these neighbors and take over their territory as an inheritance from their God (cf. Isa. 11:14).
2:10 Yahweh of armies would bring this fate on these nations because of their pride and arrogant ridicule of His people Israel (cf. Isa. 16:6; Jer. 48:26, 29; Ezek. 25:5-6, 8).
2:11 The Lord would terrify them. He would remove the inhabitants of these nations from the face of the earth so they would not be able to offer sacrifices to their pagan gods. As a result, these gods would starve. What kind of a god needs the sacrifices of mortals to sustain it? People from all the nations, pictured as living on the coastlands of the world, would worship Yahweh (cf. Mal. 1:11). This part of the prophecy awaits future fulfillment.
(NT only) to listen to the NET Bible 
