Wlastow G.K.
The banner of Issachar, depicted in green, was believed to symbolize the sun, moon, and stars. The banners associated with the generations flanking the central banner were comparatively smaller in size.
Next unto him they of the tribe of Issachar encamped, whose prince was Nathanael, the son of Suar.
וְהַחֹנִ֥ים עָלָ֖יו מַטֵּ֣ה יִשָּׂשכָ֑ר וְנָשִׂיא֙ לִבְנֵ֣י יִשָּׂשכָ֔ר נְתַנְאֵ֖ל בֶּן־צוּעָֽר׃
One Church Father comments on this verse
The banner of Issachar, depicted in green, was believed to symbolize the sun, moon, and stars. The banners associated with the generations flanking the central banner were comparatively smaller in size.
Passages read together with this verse.