Then Jonah went out to the east side of the city and made a shelter to sit under as he waited to see if anything would happen to the city.
And the LORD God arranged for a leafy plant to grow there, and soon it spread its broad leaves over Jonah's head, shading him from the sun. This eased some of his discomfort, and Jonah was very grateful for the plant.
But God also prepared a worm! The next morning at dawn the worm ate through the stem of the plant, so that it soon died and withered away.
And as the sun grew hot, God sent a scorching east wind to blow on Jonah. The sun beat down on his head until he grew faint and wished to die. "Death is certainly better than this!" he exclaimed.
Then God said to Jonah, "Is it right for you to be angry because the plant died?" "Yes," Jonah retorted, "even angry enough to die!"
Then the LORD said, "You feel sorry about the plant, though you did nothing to put it there. And a plant is only, at best, short lived.
But Nineveh has more than 120,000 people living in spiritual darkness, not to mention all the animals. Shouldn't I feel sorry for such a great city?"
References for Jonah 4:11