Numbers 3:32

ונשיא נשיאי הלוי AND [ELAZAR THE SON OF AARON THE PRIEST WAS] THE PRINCE OVER THE PRINCES OF THE LEVITES — i.e. he was appointed over all of them. And in regard to what was his overship? פקדת שמרי משמרת THE OVERSIGHT OF THEM THAT KEEP THE CHARGE [OF THE SANCTUARY] — i.e. by him was the appointment of all of these.

וּנְשִׂיא֙ נְשִׂיאֵ֣י הַלֵּוִ֔י אֶלְעָזָ֖ר בֶּן־אַהֲרֹ֣ן הַכֹּהֵ֑ן פְּקֻדַּ֕ת שֹׁמְרֵ֖י מִשְׁמֶ֥רֶת הַקֹּֽדֶשׁ׃

And El῾azar the son of Aharon the priest shall be chief over the chiefs of the Levites, and have the oversight of them that keep the charge of the sanctuary.