Lying

Ephesians 4:25

[25] Therefore, having put away falsehood, let each one of you speak the truth with his neighbour, for we are members one of another.

Colossians 3:9–10

[9] Do not lie to one another, seeing that you have put off the old self with its practices [10] and have put on the new self, which is being renewed in knowledge after the image of its creator.