SEV Biblia, Chapter 20:21 Y salió el rey de Israel, e hirió la gente de a caballo, y los carros; y deshizo a los sirios con grande estrago.
John Gill's Bible Commentary Ver. 21. And the king of Israel went out , etc.] Of Samaria; when he saw the Syrians fleeing, and his army pursuing, he went forth, perhaps, with more forces, who were now willing to join with him; Josephus says, Ahab had another army within the walls: and smote the horses and chariots ; that is, the men that rode on horses; and in chariots, the Syrian cavalry: and slew the Syrians with a great slaughter ; how many were slain is not said; but the Jewish historian says they plundered the camp, in which were much riches, and great plenty of gold and silver, and took their chariots and horses, and returned to the city of Samaria.
Matthew Henry Commentary Verses 12-21 - The proud Syrians were beaten, and the despised Israelites wer conquerors. The orders of the proud, drunken king disordered his troops, and prevented them from attacking the Israelites. Those tha are most secure, are commonly least courageous. Ahab slew the Syrian with a great slaughter. God often makes one wicked man a scourge to another.
Original Hebrew ויצא 3318 מלך 4428 ישׂראל 3478 ויך 5221 את 853 הסוס 5483 ואת 853 הרכב 7393 והכה 5221 בארם 758 מכה 4347 גדולה׃ 1419