“Should I not have concern for the great city of Nineveh, in which there are more than a hundred and twenty thousand people who cannot tell their right hand from their left?” (Jonah 4:11)
Jonah is greatly displeased that Nineveh repented and God relented: I knew that you are a gracious and compassionate God, slow to anger and abounding in love, a God who relents from sending calamity. That is why I fled to Tarshish. Jonah sits outside the city hoping to see its destruction. God provides a leafy plant to shade him; Jonah is very happy. The next day God provides a worm that kills the plant. The sun blazes on Jonah's head. He says: it would be better for me to die than to live. God says: is it right for you to be angry about the plant? Jonah: yes. God: you have been concerned about this plant, though you did not tend it or make it grow. And should I not have concern for the great city of Nineveh, in which there are more than a hundred and twenty thousand people who cannot tell their right hand from their left?
The Catechism identifies the divine mercy on Nineveh as the fullest Old Testament expression of God's universal salvific will: the God of Israel grieves over every lost soul, including Israel's enemies (CCC 604).
Brothers and sisters, should I not have concern for Nineveh? The book ends with a question, not an answer. God asks the question and waits. The question is addressed to Jonah and to every person who has ever resented divine mercy shown to those they consider enemies. You cared about a plant. I care about a hundred and twenty thousand people. What will you do with that?
Lord God, give us your concern for every Nineveh: every city full of people who cannot tell their right hand from their left. Through Christ our Lord. Amen.