C. F. Keil and Franz Delitzsch on 2 Samuel 19:15-16

2Sa 19:15-16 Return of the king; and occurrences at the crossing of the Jordan. - 2Sa 19:15-23. Pardon of Shimei. - 2Sa 19:15, 2Sa 19:16. When David reached the Jordan on his return, and Judah had come to Gilgal “to meet him, to conduct the king over the Jordan,” i.e., to form an escort at the crossing, Shimei the Benjaminite hastened down from Bahurim (see 2Sa 16:5.) with the men of Judah to meet David.