1 Chronicles 26:9-13

And Meshelemiah had sons and brethren, strong men, eighteen.

Also Hosah, of the children of Merari, had sons; Simri the chief, (for though he was not the firstborn, yet his father made him the chief;)

Hilkiah the second, Tebaliah the third, Zechariah the fourth: all the sons and brethren of Hosah were thirteen.

Among these were the divisions of the porters, even among the chief men, having wards one against another, to minister in the house of the LORD.

And they cast lots, as well the small as the great, according to the house of their fathers, for every gate.