'Ensign' in the Bible

“The sons of Israel shall camp, each by his own standard, with the banners of their fathers’ households; they shall camp around the Tent of Meeting (tabernacle), but at a distance.

Go through, go through the gates,Clear the way for the people;Build up, build up the highway,Remove the stones, lift up a banner over the peoples.

“Your sail was of fine embroidered linen from EgyptSo that it became your distinguishing mark (insignia);Your [ship’s] awning [which covered you] was blue and purple from the coasts of Elishah [of Asia Minor].