The authenticity of this book has been attested by the Lord Jesus. Matt 12:39-41. That places its contents beyond dispute for the child of God. THE MESSAGE JONAH WAS REQUIRED TO PROCLAIM WAS ONE OF GRACE. 1. The mission was initiated by the Lord. There came no pleas from Nineveh seeking mercy. Neither were there any strong pleadings for mercy from Jonah! Rom 5:8; Ezekiel 16:1-14. 2. Nineveh was a most unworthy place. It was a great city of great sin! Its stench arose to heaven. 3. Jonah was to preach mercy. That is why he ran! He could not understand why the Lord should act in grace toward such a wicked people whose very existence was a threat to Israel. 4:2.