Ch. 29 Sanctification
Sanctification means being set apart unto God; every Christian’s position toward God is the same as Jesus Christ. However, every Christian still has the old nature or fallen nature which is never set apart unto God. Every Christian has their old nature until they die. In this life, through the power of God the Holy Spirit, a Christian can grow in grace and become more and more Christ-like. At the resurrection of the righteous, every believer will be given a glorified human body; as is spoken of in 1 John 3:2
1 John 3:2 Beloved, now we are children of God, and it has not appeared as yet what we will be. We know that when He appears, we will be like Him, because we will see Him just as He is.
I believe we are given a preview of the type of glorified human bodies Christians will be given; the Bible passage is referred to as the transfiguration, see Mark 9:1-3:
Mark 9:1–3
1 And Jesus was saying to them, “Truly I say to you, there are some of those who are standing here who will not taste death until they see the kingdom of God after it has come with power.”
2 Six days later, Jesus *took with Him Peter and James and John, and *brought them up on a high mountain by themselves. And He was transfigured before them;
3 and His garments became radiant and exceedingly white, as no launderer on earth can whiten them.
John 17:17 “Sanctify them in the truth; Your word is truth.
2 Corinthians 3:18 But we all, with unveiled face, beholding as in a mirror the glory of the Lord, are being transformed into the same image from glory to glory, just as from the Lord, the Spirit.
2 Corinthians 7:1 Therefore, having these promises, beloved, let us cleanse ourselves from all defilement of flesh and spirit, perfecting holiness in the fear of God.
Ephesians 4:24 and put on the new self, which in the likeness of God has been created in righteousness and holiness of the truth.
Ephesians 5:25–27
25 Husbands, love your wives, just as Christ also loved the church and gave Himself up for her,
26 so that He might sanctify her, having cleansed her by the washing of water with the word,
27 that He might present to Himself the church in all her glory, having no spot or wrinkle or any such thing; but that she would be holy and blameless.
1 Thessalonians 5:23 Now may the God of peace Himself sanctify you entirely; and may your spirit and soul and body be preserved complete, without blame at the coming of our Lord Jesus Christ.
Hebrews 10:10,14
10 By this will we have been sanctified through the offering of the body of Jesus Christ once for all.
14 For by one offering He has perfected for all time those who are sanctified.
Hebrews 12:10 For they disciplined us for a short time as seemed best to them, but He disciplines us for our good, so that we may share His holiness.