So Gideon and the 100 men who were with him came to the edge of the camp in the beginning of the middle watch, when they had just set the watch; and they blew the shofars and broke in pieces the jugs that were in their hands.

“just set the watch.” The Hebrew uses the figure polyptoton to emphasize that the watch was newly set. They set, set the watch.
[See figure of speech “polyptoton.”]