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.
One writer saw this text as support for the historic evangelical doctrine of exclusivism in salvation and used it to argue against religious inclusivism (pluralism). [Note: Wayne G. Strickland, "Isaiah, Jonah, and Religious Pluralism," Bibliotheca Sacra 153:609 (January-March 1996):31-32.] 