2 Samuel 10:1-2

And it came to pass after this, that the king of the children of Ammon died, and Hanun his son reigned in his stead. And David said, I will show kindness unto Hanun the son of Nahash, as his father showed kindness unto me. So David sent by his servants to comfort him concerning his father. And David’s servants came into the land of the children of Ammon.