John Gill Commentary 1 Kings 18:9

"And he said, Wherein have I sinned, that thou wouldest deliver thy servant into the hand of Ahab, to slay me?" — 1 Kings 18:9 (ASV)

And he said, what have I sinned
Or in what have I offended God or his prophet, that revenge should be taken on me in this way: that you would deliver your servant into the hand of Ahab to slay
me ?
for that he supposed would be the consequence of it, as he argues and more plainly expresses his sense in the following words.