Colossians put off the old man new man niv
The passage you're referring to is Colossians 3:9-10, which says:
"Since, then, you have been raised with Christ, set your hearts on things above, where Christ is seated at the right hand of God. Set your minds on things above, not on earthly things. For you died, and your life is now hidden with Christ in God. When Christ, who is your life, appears, then you also will appear with him in glory."
And then, in Colossians 3:8-11, it says:
"But now you must also rid yourselves of all such things as anger, rage, malice, slander, and filthy language from your lips. Do not lie to each other, since you have taken off your old self with its practices and have put on the new self, which is being renewed in knowledge in the image of its Creator. Here there is no Gentile or Jew, circumcised or uncircumcised, barbarian, Scythian, slave or free, but Christ is all and is in all."
In this passage, Paul is encouraging the Colossians to put off their old way of living, which is characterized by sinful behaviors and attitudes, and to put on their new nature in Christ. He is urging them to set their minds on things above, rather than earthly things, and to live in a way that is pleasing to God.
The "old man" refers to the sinful nature that we all possess as a result of Adam's sin. This nature is characterized by selfishness, pride, and a desire to do our own thing. The "new man" refers to the new creation that we become when we put our faith in Christ. This new creation is characterized by love, humility, and a desire to live for God.
Paul is saying that we need to put off the old man, with its sinful practices and attitudes, and put on the new man, which is being renewed in the image of God. This is a process that takes place as we walk with God and allow Him to transform us into the image of Christ.