“And there were many lepers in Israel in the time of the prophet Elisha, and none of them was cleansed, but only Naaman the Syrian" (v27). Jesus announced his Messianic mission (v18) in the synagogue of his hometown, Nazareth (v22). At first his neighbors spoke well of him, but finally they tried to throw him over a cliff (v29). They wanted Jesus to be someone they could admire, not someone who disturbed their peace by extending God’s favor to foreigners, like Naaman.
"I must preach the good news … to the other towns as well” (v43). God is not the property of any culture or group; He offers salvation in Christ to “other towns” that eagerly receive Him.