First Chronicles 20 contains the final two accounts of David’s military victories over the nations surrounding Israel, which compose 1 Chronicles 18–20. First Chronicles 20:1–3 brings closure to David’s battle against the Ammonites, which began in 19:1–15. Joab, David’s general, led the Israelite army on that occasion and, while putting Ammon to flight, decided not to besiege their city. The account turns first in 19:16–19 to describe David’s victory over the Aramean…