John Gill Commentary 2 Kings 8:11

"And he settled his countenance stedfastly [upon him], until he was ashamed: and the man of God wept." — 2 Kings 8:11 (ASV)

And he settled his countenance steadfastly
Refrained himself as much as possible, that he might not weep, as some Jewish writers interpret it; or, as others, he turned his face on one side, and covered it with his hands, that Hazael might not see him weep; or rather he set his face on Hazael, and looked at him so wistly:

until he was ashamed ;
that is, Hazael; the prophet looked him out of countenance:

and the man of God wept ;
at the thought of what calamities the man before him, he looked on, would be the cause of in Israel, as the following words show.