Numbers 3:33-39
Merari's clan
33 There were two families in Merari's clan. They were the families of Mahli and Mushi. 34 There were 6,200 males in that list. They were one month old or older when Moses counted them. 35 The leader of Merari's clan was Zuriel, the son of Abihail. They had to put up their tents on the north side of the special tabernacle.
36 Merari's family had to take care of all the wood parts of the tabernacle. They took care of the heavy things that stood on the ground to hold the poles. 37 They also took care of the poles that held the cloth round the yard, their ropes and other things that held the Tent in its place.
38 Moses, Aaron and Aaron's sons had to put up their tents in front of the tabernacle, on the east side. They were the only people who could go into the Holy Place in the Tent. Any other person who went near it had to die.
39 So Moses and Aaron obeyed the Lord. They counted the Levites by their clans. There were 22,000 males who were one month old or older.