2 Samuel 2:12 (BSB)

One day Abner son of Ner and the servants of Ish-bosheth son of Saul marched out from Mahanaim to Gibeon.

From 2 Samuel 2. Also in the ESV.

Commentary on 2 Samuel 2:12

• Matthew Henry (Presbyterian), Matthew Henry's Complete Commentary on 2 Samuel 2:8-17: Here is, I. A rivalship between two kings - David, whom God made king, and Ishbosheth, whom Abner made king. One would have thought, when Saul was slain, and all his sons that had sense and spirit enough to take the field with him, David would come to the throne without any opposition, since all Israel knew, not only how he had signalized himself, but...
• John Gill (Reformed Baptist), Exposition of the Old and New Testaments on 2 Samuel 2:12: And Abner the son of Ner,.... Who was before captain of Saul's host, and now of Ishbosheth's: and the servants of Ishbosheth the son of Saul; who seem to be not only his domestic servants, that waited upon him, or his courtiers, but his whole army by what follows: went out from Mahanaim to Gibeon; came from the city on the other side Jordan, where...
• Jamieson-Fausset-Brown (Reformed), Commentary Critical and Explanatory on the Whole Bible on 2 Samuel 2:12: Abner . . . and the servants of Ish-bosheth . . . went out from Mahanaim to Gibeon--This town was near the confines of Judah, and as the force with which Abner encamped there seemed to have some aggressive design, David sent an army of observation, under the command of Joab, to watch his movements.
• Keil & Delitzsch (Lutheran), Biblical Commentary on the Old Testament on 2 Samuel 2:12-13: 2Sa 2:12-13 War between the supporters of Ishbosheth and those of David. - 2Sa 2:12, 2Sa 2:13. When Abner had brought all Israel under the dominion of Ishbosheth, he also sought to make Judah subject to him, and went with this intention from Mahanaim to Gibeon, the present Jib, in the western portion of the tribe of Benjamin, two good hours to the north of...