And in the prophet Elisha’s time, there were many in Israel who had serious skin diseases, yet not one of them was healed —only Naaman the Syrian.”

Since he was a prophet, he knew that God had sworn an oath to him to seat one of his descendants on his throne.

but He became a priest with an oath made by the One who said to Him:

The Lord has sworn,
and He will not change His mind,
You are a priest forever.