Jesus prayed that his disciples would be sanctified and consecrated in God’s truth and holiness. The scriptural word for consecration comes from the same Hebrew word which means holy or set apart for God. This word also means to be equiped with the qualities of mind and heart and character for such a task or service. Just as Jesus was called by the Father to serve in holiness and truth, so we, too, are called and equipped for the task of serving God in the world as his ambassadors. God’s truth frees us from ignorance and the deception of sin. It reveals to us God’s goodness, love, and wisdom. And it gives us a thirst for God’s holiness. The Holy Spirit is the source and giver of all holiness. As we allow the Holy Spirit to work in our lives, he transforms us by his purifying fire and changes us into the likeness of Christ.
– Don Schwager, Meditation on John 17:11-19