2 Samuel 10:5-8

When David heard what had happened, he sent messengers to tell the men, “Stay at Jericho until your beards grow out, and then come back.” For they felt deep shame because of their appearance. When the people of Ammon realized how seriously they had angered David, they sent and hired 20,000 Aramean foot soldiers from the lands of Beth-rehob and Zobah, 1,000 from the king of Maacah, and 12,000 from the land of Tob. When David heard about this, he sent Joab and all his warriors to fight them. The Ammonite troops came out and drew up their battle lines at the entrance of the city gate, while the Arameans from Zobah and Rehob and the men from Tob and Maacah positioned themselves to fight in the open fields.