Quoting_commentary for Exodus 24:9

וַיַּ֥עַל מֹשֶׁ֖ה וְאַהֲרֹ֑ן נָדָב֙ וַאֲבִיה֔וּא וְשִׁבְעִ֖ים מִזִּקְנֵ֥י יִשְׂרָאֵֽל׃

Then went up Moses, and Aaron, Nadab, and Abihu, and seventy of the elders of Israel;