Jonah, not inclined to proclaim salvation to Nineveh, he decided to escape from what G-d commanded him to do.

It took a big fish to first swallow Jonah for him to carry out his mission.

He succeeded in causing the inhabitants of Nineveh to sincerely repent of their evil ways. G-d spared Nineveh because of their repentance.

But it displeased Jonah. Since Nineveh is one of Israel’s bitter enemies.

Along G-d made a plant to grow and wither. So that Jonah would have a better understanding about sincere repentance and Nineveh.

G-d is merciful to all who return to Him sincerely.