You are set apart

“But you are a chosen race, a royal priesthood, a holy nation, a people for his own possession, that you may proclaim the excellencies of him who called you out of darkness into his marvelous light.” (1 Peter 2:9 ESV)

You are not of the world in the same way that Jesus was not of the world

“I do not ask that you take them out of the world, but that you keep them from the evil one. They are not of the world, just as I am not of the world. Sanctify them in the truth; your word is truth. As you sent me into the world, so I have sent them into the world.” (John 17:15-18 ESV) 

You are prepared by God to walk in His good works

“For we are his workmanship, created in Christ Jesus for good works, which God prepared beforehand, that we should walk in them.” (Eph. 2:10 ESV)

“Who gave himself for us to redeem us from all lawlessness and to purify for himself a people for his own possession who are zealous for good works.” (Titus 2:14 ESV)

Therefore…

“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)