An interesting point about Jonah’s preaching to Nineveh Jon 3:1-10 is that they listened to him. Jonah was not a polished speaker, and he was not enthusiastic. He did not want to deliver the message, and he had nothings but contempt for the people who were to receive it. They were his enemy. Jonah was belligerent, cantankerous, and carried a grudge. He was uncooperative and did not want to be there. In spite of that he delivered the Lords message anyway. Why did those people listen to Jonah? They did not. They did not listen to the messenger, but heard that message and knew exactly who it was from. They recognized Gods voice in a grumpy belligerent man. Jonah was not the one they listened to. When Jesus preached Lk 11:29-32 who did people hear?
(I can add a bit here. Jesus disciples heard first a prophet, and then the messiah, and finally the Son of God. To simplify things, they heard the word of God. The people of Nineveh recognized the same word when Jonah said repent, even though they did not sing any praise to Jonah. The LORD does work in mysterious ways. Think of where Moses heard the voice of God. It was a burning bush. Think of Elijah at the cave feeling the LORDS presence in a passing breeze. Did those people see God in Jonah? No. Did they recognize Gods message through Jonah? They did heed the Word and repent.)