וִיהוֹיָדָ֖ע הַנָּגִ֣יד לְאַהֲרֹ֑ן וְעִמּ֕וֹ שְׁלֹ֥שֶׁת אֲלָפִ֖ים וּשְׁבַ֥ע מֵאֽוֹת׃ (ס)
Und Jojada war der Anführer des Hauses Aaron, und mit ihm waren dreitausend und siebenhundert;
Rashi on I Chronicles
And Jehoiada was the ruler of Aaron He is the father of Benaiah.
Rashi on I Chronicles
the ruler of Aaron who would lead them out and bring them in.
Rashi on I Chronicles
three thousand and seven hundred all of them were descendants of Aaron the Priest, and Jehoiada, who was in the time of Joash, was the son of Benaiah the son of Jehoiada.