TSK · Exodus 31:1

Every skilled person among you is to come and make all that the LORD has commanded:

So Bezalel and Oholiab and every skilled person in whom the LORD has put skill and ability to know how to do all the work for the service of the sanctuary are to do the work according to all that the LORD has commanded.”

Their responsibilities included the ark, the table, the lampstand, the altars, and the utensils of the sanctuary with which they ministered, the curtain, and all their service.