1 Tawarikh 20:1

20:1 In the spring, at the time when kings normally conduct wars, ¹  Joab led the army into battle and devastated the land of the Ammonites. He went and besieged Rabbah, while David stayed in Jerusalem. Joab defeated Rabbah and tore it down.

[20:1]  ¹ tn Heb “and it was at the time of the turning of the year, at the time of the going out of kings.”