We have a patch of dirt in front of our house that we have set aside as a garden. There is a building across the street that holds red trucks filled with water hoses that has been set aside as a fire station. There is another building kitty corner from the fire station that has been set aside as a place of worship, the community church.
The definition of sanctification means to be set aside for the purposes of God. We are both immediately sanctified at the moment of salvation and we grow in sanctification throughout our life on earth. But how does this process occur?
Jesus gave us the answer in his prayer to the Father. "Sanctify them by your truth. Your word is truth"(John 17:17),
