God said, “I’ll meet the human race in only one place. That is the cross.” And if you haven’t been to the cross, there is no salvation and there is no forgiveness.
The purpose of the book of Jonah is to show that God is a merciful and gracious God. Although the wicked city of Nineveh deserved to be crushed immediately, God was patient towards them. A reluctant prophet, Jonah originally ran from God before delivering a message of repentance to the nation of Nineveh.