New Living Translation
May God give them a bellyful of trouble. May God rain down his anger upon them.

American Standard Version
When he is about to fill his belly, God will cast the fierceness of his wrath upon him, And will rain it upon him while he is eating.

Berean Study Bible
When he has filled his stomach, God will vent His fury upon him, raining it down on him as he eats.

Douay-Rheims Bible
May his belly be filled, that God may send forth the wrath of his indignation upon him, and rain down his war upon him.

English Revised Version
When he is about to fill his belly, God shall cast the fierceness of his wrath upon him, and shall rain it upon him while he is eating.

King James Bible
When he is about to fill his belly, God shall cast the fury of his wrath upon him, and shall rain it upon him while he is eating.

World English Bible
When he is about to fill his belly, God will cast the fierceness of his wrath on him. It will rain on him while he is eating.

Young's Literal Translation
It cometh to pass, at the filling of his belly, He sendeth forth against him The fierceness of His anger, Yea, He raineth on him in his eating.

Job 20:23 Additional Translations ...