Naaman uses this rhetorical question to emphasize that the Abanah and the Pharpar are better rivers than the Jordan. This can be written as a statement. Alternate translation: "The Abanah and the Pharpar Rivers, in my home country of Aram, are much better than any of the rivers of Israel! (See: [[rc://en/ta/man/translate/figs-rquestion]])
Naaman uses this rhetorical question to emphasize that he could have bathed in the other rivers easily. He believes that bathing in them could heal him just as bathing in the Jordan could. This can be written as a statement. Alternate translation: "I should have just bathed in them and been healed!" or "I could just as easily have bathed in them and been healed!" (See: [[rc://en/ta/man/translate/figs-rquestion]] and [[rc://en/ta/man/translate/figs-irony]])