Colossians / Question
Colossians says to put off anger, wrath, malice, slander, and obscene talk, and to stop lying because the old self has been put off Colossians 3:8–9. It says the new self is being renewed in knowledge after the image of its creator Colossians 3:10.
In Colossians 3:8–11, Paul tells the community to stop acting in ways that belong to their former way of life. They must set aside destructive speech and attitudes, especially lying. His reason is that they have already “taken off” the old self and “put on” a new self, which is being reshaped toward its Maker’s pattern. This unit sits in the letter’s practical section, where Paul draws behavioral implications from the community’s new identity in Christ. Just before this, he urges them to put to death practices tied to their former life and warns about consequences that follow such behaviors (Colossians 3:5–7).
Colossians 3:8–11 presents a “before/after” contrast. The passage explicitly names practices that damage community life—anger, hostile intent, and especially speech that harms (slander, shameful talk, lying).
A careful answer keeps the immediate passage, the book's argument, and the whole-Bible storyline together, so the question is answered in context instead of as a detached idea.
Start with Colossians 3:8-9, then read the surrounding section so the answer stays connected to the passage's flow.
8but now you also put them all away: anger, wrath, malice, slander, and shameful speaking out of your mouth.
9Don`t lie to one another, seeing that you have put off the old man with his doings,