2 Samuel 3:12

3:12 Then Abner sent messengers to David saying, “To whom does the land belong? Make an agreement with me, and I will do whatever I can to cause all Israel to turn to you.”

2 Samuel 10:2

10:2 David said, “I will express my loyalty to Hanun son of Nahash just as his father was loyal to me.” So David sent his servants with a message expressing sympathy over his father’s death. When David’s servants entered the land of the Ammonites,