Joel 3:1-2

3:1 For, behold, in those days, and in that time, when I shall bring again the captivity of Judah and Jerusalem, 3:2 I will also gather all nations, and will bring them down into the valley of Jehoshaphat, and will plead with them there for my people and [for] my heritage Israel, whom they have scattered among the nations, and parted my land.

Joel 3:12-14

3:12 Let the heathen be wakened, and come up to the valley of Jehoshaphat: for there will I sit to judge all the heathen round about. 3:13 Put ye in the sickle, for the harvest is ripe: come, get you down; for the press is full, the fats overflow; for their wickedness [is] great. 3:14 Multitudes, multitudes in the valley of decision: for the day of the LORD [is] near in the valley of decision.