Sanctify them through thy truth: thy word is truth.
II Thessalonians 2:13
"Sanctified" means to be "set apart from that which is common." The Greek word translated "sanctified" in the Bible is also translated "holy" or "saint." God has set us apart from that which is common in the world by placing His holy spirit in us when we believed the truth. We are His separated ones. We are holy. We are saints.