Ezra 8:18-19

18And according to the good hand of our God upon us they brought us a man of discretion, of the sons of Mahli, the son of Levi, the son of Israel; and Sherebiah, with his sons and his brethren, eighteen;

19and Hashabiah, and with him Jeshaiah of the sons of Merari, his brethren and their sons, twenty;