1 Chronicles 20:1-2 Amplified Bible, Classic Edition (AMPC)
20 After the end of the year, when kings go out to battle, Joab led forth the army and devastated the land of the Ammonites, and came and besieged Rabbah. But David tarried at Jerusalem. Joab smote Rabbah and overthrew it.
2 David took their king’s crown from off his head and found that it weighed a talent of gold and that precious stones were in it. It was set upon David’s head. He brought also very much spoil out of the city of Rabbah.