1 Kings 20:37

“Then he found another man, and said, smite me, I pray thee, etc.] This is not said to be his neighbour, nor one of the sons of the prophets, but a rustic man, and so stuck not to take him at his word: and the man smote him, so that in smiting he wounded him; in his face; made some incision in his flesh, broke the skin, and fetched blood of him; perhaps somewhere about his eyes, by what follows: this he got done to him, that he might look like a wounded soldier, and thereby get the more easily to the speech of Ahab.”

“Smite me: Kg1 20:35; Exo 21:12 so that: etc. Heb. smiting and wounding 3 Kings (1 Kings) 20:38”

“The disciple of the prophets then asked another to smite him, and he smote him, "smiting and wounding," i.e., so that he not only smote, but also wounded him (vid., Ewald, 280, a.). He wished to be smitten and wounded, not to disguise himself, or that he might be able to appeal loudly to the king for help to obtain his rights, as though he had suffered some wrong (Ewald), nor merely to assume the deceptive appearance of a warrior returning from the battle (Thenius), but to show to Ahab symbolically what he had to expect from Benhadad whom he had released (C. a Lap., Calm., etc.). 3 Kings (1 Kings) 20:38”