6 Therefore as you have received Christ Jesus the Lord, so walk in Him, 7 having been firmly rooted and now being built up in Him and established in your faith, just as you were instructed, and overflowing with gratitude.
8 See to it that no one takes you captive through philosophy and empty deception, according to the tradition of men, according to the elementary principles of the world, rather than according to Christ. Colossians 2:6-8 (NASB)
When God saved us He justified us by imputing Christ’s righteousness to our account. He washed us clean through the miracle of regeneration that changed us so that we now have the spiritual ability to walk through our lives and not sin. He also sanctified us, but that was only positional. He did not remove our old nature. We are still in a death struggle with it to nullify our pride and cultivate humility as God’s Holiness becomes manifest in us more and more. This body of death is still with us, but we are no longer dead in our trespasses and sins (Romans 3:10-18) because we are now alive in Christ.