2 Samuel 3:1-2

Revised Standard Version

Abner Defects to David

3 There was a long war between the house of Saul and the house of David; and David grew stronger and stronger, while the house of Saul became weaker and weaker.

² And sons were born to David at Hebron: his first-born was Amnon, of Ahin′o-am of Jezreel;