Divrey Hayamim Alef 26:9-11

Orthodox Jewish Bible

⁹ And Meshelemyahu had banim and brethren, bnei chayil, eighteen.

¹⁰ Also Chosah, of the Bnei Merari, had banim; Shimri the rosh, (for though he was not the bechor, yet avihu appointed him rosh);

¹¹ Chilkiyahu the second, Tevalyahu the third, Zecharyahu the fourth; all the banim and brethren of Chosah were thirteen.