15 And it came to pass on the morrow, that he took a thick cloth, and dipped it in water, and spread it on his face, so that he died: and Hazael reigned in his stead.
[AD 373] Ephrem the Syrian on 2 Kings 8:7-15
“Elisha went to Damascus while King Ben-hadad was ill.” His illness had derived from his unhappiness. For he had been deeply afflicted by the fact that, in the war of Samaria, his armies had been defeated and that, at the same time, his people had been chased from the city when he had hoped that his victory would occur immediately. His entire army had fled and sunk into shame and dishonor, and he was troubled in his mind because of this. In addition, the anguish of his thoughts was due to something that was not responsible for his fall: he had been deceived in believing that a countless and powerful army would march against him, whereas it was later shown that there was no army at all to oppress him.Therefore the king, when he heard of the coming of Elisha, sent Hazael, one of his noble men, to meet him. He ordered him to persuade the prophet to take care of his healing, and since he thought that this request must be accompanied with gifts and offerings, according to secular customs, he sent him, through his ambassador, all sorts of goods from Damascus and forty camels. But certainly the prophets refused, just as Elisha had refused and had not accepted the offerings of Naaman, the Aramean.

[AD 373] Ephrem the Syrian on 2 Kings 8:7-15
“Go, say to him, ‘You shall certainly recover;’ but the Lord has shown me that he shall certainly die.” These were the words of Elisha to the king, who asked him, “Will I live after this illness?” But it seems that they do not agree with the truth of the events, and not even with each other. However, after the words reported above in the story of the prophet Micah, it is evident that they do not cancel each other out or contradict each other. In fact, both prophets answer in the same manner, and the words of their reply pursue the same aim in the fact that they announce to their interlocutor good and death at the same time. But in the reply of Micah a particular aspect must be considered, that is, the fact that Ahab could not escape from death, because he so ardently and savagely wanted to go to the war, which was the real cause of his fall.But the case of Ben-hadad is quite different: it would have been easy for him to get rid of his illness, because it was not serious or fatal. He would have recovered from his illness, as Elisha had said to him and as Ben-Hadad had asked him by saying, “Will I live after my illness?” However, he died in a natural course but by a hostile means: he was misled by Hazael, his ambassador, the one who spread the bed cover on his master, killed him and reigned in his place, as Elisha had predicted.