Adam Clarke Bible Commentary

The king talked with Gehazi - This is supposed to have happened before the cleansing of Naaman, for is it likely that the king would hold conversation with a leprous man; or that, knowing Gehazi had been dismissed with the highest disgrace from the prophet's service, he could hold any conversation with him concerning his late master, relative to whom he could not expect him to give either a true or impartial account? Some think that this conversation might have taken place after Gehazi became leprous; the king having an insatiable curiosity to know the private history of a man who had done such astonishing things: and from whom could he get this information, except from the prophet's own confidential servant? It agrees better with the chronology to consider what is here related as having taken place after the cure of Naaman. As to the circumstance of Gehazi's disease, he might overlook that, and converse with him, keeping at a reasonable distance, as nothing but actual contact could defile.