17 This I say therefore, and testify in the Lord, that ye henceforth walk not as other Gentiles walk, in the vanity of their mind,
18 Having the understanding darkened, being alienated from the life of God through the ignorance that is in them, because of the blindness of their heart:
19 Who being past feeling have given themselves over unto lasciviousness, to work all uncleanness with greediness.
20 But ye have not so learned Christ;
21 If so be that ye have heard him, and have been taught by him, as the truth is in Jesus:
22 That ye put off concerning the former conversation the old man, which is corrupt according to the deceitful lusts;
23 And be renewed in the spirit of your mind;
24 And that ye put on the new man, which after God is created in righteousness and true holiness.
The Apostle Paul is telling us to “put off the old man” and to “put on the new man.” The word of God teaches in many verses that there must be a change after salvation. When you are translated from the Kingdom of darkness to the Kingdom of light, there must be a change. Light and darkness can’t mix because light dispels darkness. The Christian life is a changed life!