2 Samuel 3:24-26

New International Version

²⁴ So Joab went to the king and said, “What have you done? Look, Abner came to you. Why did you let him go? Now he is gone! ²⁵ You know Abner son of Ner; he came to deceive you and observe your movements and find out everything you are doing.”

²⁶ Joab then left David and sent messengers after Abner, and they brought him back from the cistern at Sirah. But David did not know it.