A. Sanctification means “to set apart” or to separate from evil to a dedicated life of service to God.
B. Sanctification in the believer is three-fold.
1. At the moment of Salvation, we are sanctified positionally, by the finished work of Christ on the cross.
Hebrews 10:10-14 “By the which will we are sanctified through the offering of the body of Jesus Christ once for all. And every priest standeth daily ministering and offering oftentimes the same sacrifices, which can never take away sins: But this man, after he had offered one sacrifice for sins for ever, sat down on the right hand of God; From henceforth expecting till his enemies be made his footstool. For by one offering he hath perfected for ever them that are sanctified.”
Hebrews 13:12 “Wherefore Jesus also, that he might sanctify the people with his own blood, suffered without the gate.”
1 Corinthians 6:11 “And such were some of you: but ye are washed, but ye are sanctified, but ye are justified in the name of the Lord Jesus, and by the Spirit of our God.”
At Salvation we are immediately set apart for service. Ephesians 2:8-10 “For by grace are ye saved through faith; and that not of yourselves: it is the gift of God: Not of works, lest any man should boast. For we are his workmanship, created in Christ Jesus unto good works, which God hath before ordained that we should walk in them.”
2. During the believers’ walk on earth, we are sanctified progressively by the Holy Spirit and the Word of Truth.
2 Timothy 2:21 “If a man therefore purge himself from these, he shall be a vessel unto honour, sanctified, and meet for the master’s use, and prepared unto every good work.”
Hebrews 12:23 “To the general assembly and church of the firstborn, which are written in heaven, and to God the Judge of all, and to the spirits of just men made perfect,”
1 Corinthians 15:44-46 “It is sown a natural body; it is raised a spiritual body. There is a natural body, and there is a spiritual body. And so it is written, The first man Adam was made a living soul; the last Adam was made a quickening spirit. Howbeit that was not first which is spiritual, but that which is natural; and afterward that which is spiritual.” The word “saint” means “sanctified one.”
3. In Heaven we will be sanctified permanently.
Concerning our resurrection body: 1 Corinthians 15:44-49 says, “It is sown a natural body; it is raised a spiritual body. There is a natural body, and there is a spiritual body. And so it is written, The first man Adam was made a living soul; the last Adam was made a quickening spirit. Howbeit that was not first which is spiritual, but that which is natural; and afterward that which is spiritual. The first man is of the earth, earthy; the second man is the Lord from heaven. As is the earthy, such are they also that are earthy: and as is the heavenly, such are they also that are heavenly. And as we have borne the image of the earthy, we shall also bear the image of the heavenly.”