2 Samuel 2:8, 12, 29

But Abner the son of Ner, commander of Saul’s army, had taken Ish-bosheth the son of Saul and brought him over to Mahanaim.

Now Abner the son of Ner, went out from Mahanaim to Gibeon with the servants of Ish-bosheth the son of Saul.

Abner and his men then went through the Arabah all that night; so they crossed the Jordan, walked all morning, and came to Mahanaim.