Jamieson, Fausset & Brown, on Judg 5:15

“The captains of Issachar were with Debbora, and followed the steps of Barac, who exposed himself to danger, as one going headlong, and into a pit. Ruben being divided against himself, there was found a strife of courageous men.”

“Then comes a reproachful notice of the tribes which did not obey the summons to take the field against the common enemy of Israel. By the divisions--that is, the watercourses which descend from the eastern hills unto the Jordan and Dead Sea. For the divisions of Reuben there were great thoughts of heart--They felt the patriotic impulse and determined, at first, to join the ranks of their western brethren, but resiled from the purpose, preferring their peaceful shepherd songs to the trumpet sound of war.”

Imported from an open dataset — not yet checked against the printed edition.