2 Samuel 12:26

Meanwhile, Joab fought against the Ammonite city of Rabbah and captured its royal fortress.

Deuteronomy 3:11

Of the Rephaim only King Og of Bashan was left. His bed was made of iron and was more than thirteen feet long and six feet wide. It is still in the Ammonite city of Rabbah.

1 Chronicles 20:1-3

In the spring, the time when kings go out to battle, Joab led the army to war. They destroyed the Ammonites and came to Rabbah to attack it, while David stayed in Jerusalem. Joab defeated Rabbah and tore it down.

2 Samuel 11:25

David replied: This is what you are to say to Joab: 'Do not let this thing trouble you. After all a sword can kill one person as easily as another. Strengthen your attack against the city, and destroy it. Say this to encourage him.'

Treasury of Scripture Knowledge

Summary

And Joab fought against Rabbah of the children of Ammon, and took the royal city.

Bible References

Joab

2 Samuel 11:25
David replied: This is what you are to say to Joab: 'Do not let this thing trouble you. After all a sword can kill one person as easily as another. Strengthen your attack against the city, and destroy it. Say this to encourage him.'
1 Chronicles 20:1
In the spring, the time when kings go out to battle, Joab led the army to war. They destroyed the Ammonites and came to Rabbah to attack it, while David stayed in Jerusalem. Joab defeated Rabbah and tore it down.