3:25 You know Abner the son of Ner! Surely he came here to spy on you and to determine when you leave and when you return 1 and to discover everything that you are doing!”
2 Samuel 21:17
21:17 But Abishai the son of Zeruiah came to David’s aid, striking the Philistine down and killing him. Then David’s men took an oath saying, “You will not go out to battle with us again! You must not extinguish the lamp of Israel!”
1 tnHeb “your going out and your coming in.” The expression is a merism. It specifically mentions the polar extremities of the actions but includes all activity in between the extremities as well, thus encompassing the entirety of one’s activities.