"But that is not the way you learned Christ!-- assuming that you have heard about him and were taught in him, as the truth is in Jesus, to put off your old self, which belongs to your former manner of life and is corrupt through deceitful desires, and to be renewed in the spirit of your minds, and to put on the new self, created after the likeness of God in true righteousness and holiness." (Ephesians 4:20-24 ESV)
"The putting on of the new man is something that must be done completely, it must always be done as a whole, and it must apply to the whole of our life continuously. In other words, we must never do the work in compartments; we must put on the new man not only in certain parts of our lives, it must be the whole of our life. We must not put on the new man only at certain times or when we are in certain company, or when we are in certain places. That would be to deny the whole principle. The new man must be the reigning and the governing principle of the whole of our life; having been born again we have been moved from the world into the Kingdom of God; and therefore the whole of our life and of our conduct will and must be entirely different from our life and conduct in the past."
~ Martyn Lloyd-Jones, Darkness and Light, p. 190.