Ephesians 4:25-31
So then, put away lying and [Zech 8:16], "Each one should speak truthfully with his neighbor," because we are parts of one another [i.e., in the one body].
Colossians 3:8
But now you also should stop practicing them: anger, wrath, malice, slander, filthy language from your mouth.
1 Timothy 6:5
[and] continual wranglings between people with corrupt minds, who are deprived of the truth. They think that [professing] godliness is a way to obtain [financial] gain.
James 1:21
Therefore, you should put away [from you] all moral filth and overflowing wickedness and humbly receive the word [of God], planted within you [by the Holy Spirit. See John 16:8], which is capable of saving your souls.
James 1:26
If anyone considers himself to be religious and yet does not keep a tight rein on his tongue, this person is self-deceived and his religion is worthless.
1 Peter 2:1
Therefore, you should put out of your lives all malice [i.e., bad attitudes], and all deceit and hypocrisy, and all envy and unwholesome talk.