The role of the Levites

Numbers 4:1-49
Count all the men from thirty to fifty years of age who come to serve in the work at the tent of meeting. This is the work of the Kohathites at the tent of meeting: the care of the most holy things.
“After Aaron and his sons have finished covering the holy furnishings and all the holy articles, and when the camp is ready to move, only then are the Kohathites to come and do the carrying. But they must not touch the holy things or they will die. The Kohathites are to carry those things that are in the tent of meeting.
Eleazar son of Aaron, the priest, is to have charge of the oil for the light, the fragrant incense, the regular grain offering and the anointing oil. He is to be in charge of the entire tabernacle and everything in it, including its holy furnishings and articles. But the Kohathites must not go in to look at the holy things, even for a moment, or they will die.
This is the service of the Gershonite clans in their carrying and their other work: They are to carry the curtains of the tabernacle, that is, the tent of meeting, its covering and its outer covering of durable leather, the curtains for the entrance to the tent of meeting, This is the service of the Gershonite clans at the tent of meeting. Their duties are to be under the direction of Ithamar son of Aaron, the priest.
Count the Merarites by their clans and families. they are to carry the frames of the tabernacle, its crossbars, posts and bases,  as well as the posts of the surrounding courtyard with their bases, tent pegs, ropes, all their equipment and everything related to their use. Assign to each man the specific things he is to carry.
So Moses, Aaron and the leaders of Israel counted all the Levites by their clans and families.  All the men from thirty to fifty years of agewho came to do the work of serving and carrying the tent of meeting numbered 8,580.
The second census of Levites lists those between 30 to 50, eligible to take care of God's Tent.
Kohathites are responsible for carrying the sacred objects of the sanctuary after the priest have dismantled and covered them.
Gershonites are in charge of transporting the curtains and coverings of the Tent and firecourt under Ithamar's supervision.
Merarites are to look after and transport the framework - pillars, pegs, cords - also under Ithamar's supervision. Wagons drawn by a yoke of oxen are provided for the Gershonites and Merarites.
Why?
The Levites are the servant of the Lord they are take care the fair of the Tent of Meeting. Three clan of Levites have their responsibility to do.
God has assigned them do their job, so that no one complain why they do this, for God is Holy and is the Lord to all of them.
Every role of the Levites are important so as to the service role in church now is important.
The most important to everyone serve the Lord is  focus on the Lord.
How?
Do different jobs in church or any places serve the Lord with team work.