The people of Nineveh believed God; and they proclaimed a fast, and put on sackcloth, from the greatest of them even to the least of them.
On what basis did they repent? Jonah didn't say, "Repent or destruction comes." He didn't preach repentance at all. In fact, he didn't want them to repent. He became angry when they did repent. One of the only preachers in history who was hoping that he would not have a successful ministry. But they repented on the slim basis of,