John:17:17: Sanctify them through thy truth: thy word is truth.
1Pe:3:15: But sanctify the Lord God in your hearts: and be ready always to give an answer to every man that asketh you a reason of the hope that is in you with meekness and fear:
"True sanctification comes through the working out of the principle of love. "God is love; and he that dwelleth in love dwelleth in God, and God in him." 1 John 4:16. The life of him in whose heart Christ abides, will reveal practical godliness. The character will be purified, elevated, ennobled, and glorified. Pure doctrine will blend with works of righteousness; heavenly precepts will mingle with holy practices.
Those who would gain the blessing of sanctification must first learn the meaning of self-sacrifice. The cross of Christ is the central pillar on which hangs the "far more exceeding and eternal weight of glory." "If any man will come after Me," Christ says, "let him deny himself, and take up his cross, and follow Me." 2 Corinthians 4:17; Matthew 16:24. It is the fragrance of our love for our fellow men that reveals our love for God. It is patience in service that brings rest to the soul. It is through humble, diligent, faithful toil that the welfare of Israel is promoted. God upholds and strengthens the one who is willing to follow in Christ's way.
Sanctification is not the work of a moment, an hour, a day, but of a lifetime. It is not gained by a happy flight of feeling, but is the result of constantly dying to sin, and constantly living for Christ. Wrongs cannot be righted nor reformations wrought in the character by feeble, intermittent efforts. It is only by long, persevering effort, sore discipline, and stern conflict, that we shall overcome. We know not one day how strong will be our conflict the next. So long as Satan reigns, we shall have self to subdue, besetting sins to overcome; so long as life shall last, there will be no
stopping place, no point which we can reach and say, I have fully attained. Sanctification is the result of lifelong obedience."
The Acts of the Apostles: By Ellen G White