"Apart" from whom?

The two Set Apart to Serve posters that are designed for youth ask, "Are you set apart to serve?" and list only church work vocations. Yet all Christians have been chosen to be "a people for [God's] own possession who are zealous for good works" (Titus 2:14 ESV).

"Therefore, if anyone cleanses himself from what is dishonorable, he will be a vessel for honorable use, set apart as holy, useful to the master of the house, ready for every good work" (2 Tim. 2:21 ESV, emphasis added).

Opportunities to find joy and fulfillment as God's instruments are as varied as his gifts to each of us. So: "Having gifts that differ according to the grace given to us, let us use them" (Rom. 12:6 ESV).