Joel 2:26-27

The people would have plenty to eat and would feel satisfied physically. They would also be full spiritually and praise Yahweh their God for working wonders for them (cf. Exodus 3:15; Exodus 15:11; Exodus 34:10; Joshua 3:5; Judges 6:13; Psalms 77:14). They would never be put to shame, again assuming that they continued in their attitude of humble trust and obedience (cf. Joel 2:19). God’s blessings would evidence His presence among them and the intimacy of their fellowship with Him (cf. Numbers 11:20; Numbers 14:14; Deuteronomy 7:21). They would realize in their experience that He is the only true God (cf. Exodus 6:7; Exodus 16:12; Deuteronomy 4:35; Deuteronomy 4:39), and they would abide in that shameless condition (as long as they remained faithful to Him).

". . . just as God’s warnings of judgment are often conditional and can be averted by repentance, so his promises of prosperity are often contingent on their recipients remaining loyal to God (see Jeremiah 18:7-10)." [Note: Chisholm, Handbook on . . ., p. 373.]