Colossians 3:5-7 (ESV)
Put to death therefore what is earthly in you: sexual immorality, impurity, passion, evil desire, and covetousness, which is idolatry. On account of these the wrath of God is coming. In these you too once walked, when you were living in them.
The concept of put to death in theological terms is called the mortification of sin. In psychology terms, mortification of something is be subjugated to shame, humiliation and the destruction of all pride. But in theological terms is the death of sin. Paul is addressing the past of those he is writing to in the city of Colossae. He is reminding them of who they were before their lives were hidden with Christ (3:3). But there is an imperative in Paul’s words. Although they have been set free from the penalty of the things he lists in the above verse, they are not set free of the presence of these things. Therefore, by the power of the Holy Spirit they are to put to death that which Christ already crucified for them. We are, hidden with Christ, to kill these things in our lives. This is the act of sanctification. We were living in these things. But now we are NOT. We have, hidden with Christ, been set free from their penalty and their power. It is their presence that haunts us. As Paul stated in Romans 7, they are always with us. But Christ has empowered us, if by faith we mortify them. They are not to be played with. They are not to be pampered. They are not to be simply paused in our life. They are to be mortified; put to death. Don’t toy with the sins that lurk in your life. They are to be utterly destroyed.