Moses therefore came, and told the people the words of the Lord, and assembled seventy men of the ancients of Israel, and made them to stand about the tabernacle.
וַיֵּצֵ֣א מֹשֶׁ֔ה וַיְדַבֵּר֙ אֶל־הָעָ֔ם אֵ֖ת דִּבְרֵ֣י יְהוָ֑ה וַיֶּאֱסֹ֞ף שִׁבְעִ֥ים אִישׁ֙ מִזִּקְנֵ֣י הָעָ֔ם וַֽיַּעֲמֵ֥ד אֹתָ֖ם סְבִיבֹ֥ת הָאֹֽהֶל׃
One Church Father comments on this verse
It seems likely that Moses selected the elders from among the people who had not participated in their complaints about the manna. He arranged these appointed leaders around the tabernacle of meeting, likely in a semicircle, close to the location where the Lord would later make His appearance.
Passages read together with this verse.
THEOSIS