Paul writes in II 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 by the Spirit of the Lord" (emphasis ours). Transformation is a process, as is redemption. We should be able to understand this fully from our own experiences since being converted. We know that we are not completely free from Satan and this world.
The apostle Paul writes in I Corinthians 13:12, "For now we see in a mirror, dimly, but then face to face. Now I know in part, but then I shall know just as I also am known." This verse indicates that everything concerning salvation is undergoing a process of transformation. Human nature and this world have their hands upon us, and we have to fight them off. We know that if we do not, we will conform to them and their ways. Gradually, as we learn and overcome, the veil is removed, but a time is coming when we will have fullness of everything promised.
Paul relates his experience in Romans 7:23, "But I see another law in my members, warring against the law of my mind, and bringing me into captivity to the law of sin which is in my members." He writes that the law of sin brought him into captivity. A person in captivity is not free, is he? In verse 24, he continues, "Who shall deliver me [redeem me completely] from this body of death?" A person in need of deliverance is not free. Even as a long-time apostle, Paul was not truly as free as God fully intended him to be.
We see this pictured in the children of Israel in the wilderness. They were physically free—that is, they had fled beyond the boundaries of Egypt—but they were still not free from Egypt's influence, which they carried right with them in their minds and displayed in their conduct and attitudes. This is why God urges us to flee Babylon (see Jeremiah 51:6; Revelation 18:4). We cannot physically escape from its borders because Babylon's influence is worldwide, but we can escape spiritually by not permitting it to influence our conduct and attitudes.
All this means that we will not truly be redeemed until we fully come into our inheritance. Then we will be completely released from all the effects of sin, and it will be plain to all that we are indeed God's peculiar treasure.