Numbers 4:15
"And when Aaron and his sons have made an end of covering the sanctuary, and all the vessels of the sanctuary, as the camp is to set forward; after that, the sons of Kohath shall come to bear it: but they shall not touch any holy thing, lest they die. These things are the burden of the sons of Kohath in the tabernacle of the congregation."
The work of the LORD is the most important work in the world. There are many important jobs in this world, but none deal with the souls of men like the church. This is why everyone needs to be involved in church work.