Sanctify them through thy truth: thy word is truth. John 17:17.
Those who are sanctified through the truth are living recommendations of its power, and representatives of their risen Lord. The religion of Christ will refine the taste, sanctify the judgment, elevate, purify, and ennoble the soul, making the Christian more and more fit for the society of the heavenly angels.
“And for their sakes I sanctify myself, that they also might be sanctified through the truth.” John 17:19. “Seeing ye have purified your souls in obeying the truth through the Spirit unto unfeigned love of the brethren, see that ye love one another with a pure heart fervently.” 1 Peter 1:22. “Having therefore these promises, dearly beloved, let us cleanse ourselves from all filthiness of the flesh and spirit, perfecting holiness in the fear of God.” 2 Cor. 7:1. . . .
Here is Bible sanctification. It is not merely a show or outside work. It is sanctification received through the channel of truth. It is truth received in the heart, and practically carried out in the life. There is no Bible sanctification for those who cast a part of the truth behind them. There is light enough given in the word of God, so that none need err. . . . Jesus, considered as a man, was perfect, yet He grew in grace. “And Jesus increased in wisdom and stature, and in favor with God and man.” Luke 2:52. Even the most perfect Christian may increase continually in the knowledge and love of God. . . .
Sanctification is not the work of a moment, an hour, or a day. It is a continual growth in grace. . . . Satan lives, and is active, and every day we need to cry earnestly to God for help and strength to resist him. As long as Satan reigns we shall have self to subdue, besetments to overcome, and there is no stopping place, there is no point to which we can come and say we have fully attained. . . .
The Christian life is constantly an onward march. Jesus sits as a refiner and purifier of His people; and when His image is perfectly reflected in them, they are perfect and holy, and prepared for translation.
From Maranatha – Page 90