2 Chronicles 27:5

He also fought with the king of the Ammonites and prevailed over them. As a result the Ammonites gave him during that year a hundred talents of silver and ten thousand measures each of wheat and of barley. The Ammonites also paid him that much in the second year and third year.

Judges 11:4-33

Now it happened after a while that the Ammonites fought against Israel.

2 Samuel 10:1-14

Now it happened later that [Nahash] the king of the Ammonites died, and his son Hanun became king in his place.

2 Chronicles 20:1

Now it happened after this that the Moabites and the Ammonites, together with some of the Meunites, came to make war against Jehoshaphat.

Jeremiah 49:1-6

Concerning the sons (descendants) of Ammon.

Thus says the Lord:
“Does Israel have no sons [to reclaim Gad from the Ammonites]?
Has he no heir?
Why then has Malcam taken possession of Gad
And [why do] his people live in the cities [of Gad]?

Treasury of Scripture Knowledge

Summary

He fought also with the king of the Ammonites, and prevailed against them. And the children of Ammon gave him the same year an hundred talents of silver, and ten thousand measures of wheat, and ten thousand of barley. So much did the children of Ammon pay unto him, both the second year, and the third.

Bible References

The king of the ammonites

2 Chronicles 20:1
Now it happened after this that the Moabites and the Ammonites, together with some of the Meunites, came to make war against Jehoshaphat.
Judges 11:4
Now it happened after a while that the Ammonites fought against Israel.
2 Samuel 10:1
Now it happened later that [Nahash] the king of the Ammonites died, and his son Hanun became king in his place.
Jeremiah 49:1
Concerning the sons (descendants) of Ammon.

Thus says the Lord:
“Does Israel have no sons [to reclaim Gad from the Ammonites]?
Has he no heir?
Why then has Malcam taken possession of Gad
And [why do] his people live in the cities [of Gad]?