2 Samuel 3
23 When Joab and his men came, news was given them that Abner, the son of Ner, had come to the king, who had let him go away again in peace.
24 Ref Then Joab came to the king, and said, What have you done? when Abner came to you why did you send him away and let him go?
25 Ref Is it not clear to you that Abner, the son of Ner, came with deceit to get knowledge of your going out and your coming in and of all you are doing?