2 Samuel 10:2
Then said David, I will show kindness unto Hanun the son of Nahash, as his father showed kindness unto me. And David sent to comfort him by the hand of his servants for his father. And David's servants came into the land of the children of Ammon.
1 Samuel 11:1
Then Nahash the Ammonite came up, and encamped against Jabeshgilead: and all the men of Jabesh said unto Nahash, Make a covenant with us, and we will serve you.
Deuteronomy 23:3-6
An Ammonite or Moabite shall not enter into the congregation of the LORD; even to their tenth generation shall they not enter into the congregation of the LORD forever:
1 Samuel 22:3-4
And David went from there to Mizpah of Moab: and he said unto the king of Moab, Let my father and my mother, I pray you, come forth, and be with you, till I know what God will do for me.
Nehemiah 4:3-7
Now Tobiah the Ammonite was by him, and he said, Even that which they build, if a fox goes up, he shall even break down their stone wall.
Nehemiah 13:1-3
On that day they read in the book of Moses in the hearing of the people; and in it was found written, that the Ammonite and the Moabite should not come into the congregation of God forever;