Reference for I Chronicles 9:13

וַאֲחֵיהֶ֗ם רָאשִׁים֙ לְבֵ֣ית אֲבוֹתָ֔ם אֶ֕לֶף וּשְׁבַ֥ע מֵא֖וֹת וְשִׁשִּׁ֑ים גִּבּ֣וֹרֵי חֵ֔יל מְלֶ֖אכֶת עֲבוֹדַ֥ת בֵּית־הָאֱלֹהִֽים׃

and their brethren, heads of their fathers’houses, a thousand and seven hundred and threescore; very able men for the work of the service of the house of God.