Albert Barnes Commentary 1 Samuel 14:20

"And Saul and all the people that were with him were gathered together, and came to the battle: and, behold, every man`s sword was against his fellow, [and there was] a very great discomfiture." — 1 Samuel 14:20 (ASV)

Assembled themselves - See the marginal note. Many versions give the sense of “shouted,” which is far preferable and only requires a different punctuation.