When Jonah arrived in Nineveh, his message was heard and the people of the city, including the king, all bowed before the God of Heaven and asked for forgiveness. They saw that they were sinners who had done many evil things. So they stopped what they were doing and called out to the Lord, asking for His mercy. God heard and did not destroy them. God showed kindness to them and forgave them of their sins.
God is kind. He is forgiving. What about you, have your turned to the Lord?