James 3:6-10
The tongue also is a fire, a world of wickedness among the parts of the body. It pollutes the whole person, sets the course of his life on fire, and is itself set on fire by hell. / All kinds of animals, birds, reptiles, and creatures of the sea are being tamed and have been tamed by man, / but no man can tame the tongue. It is a restless evil, full of deadly poison. ...

Matthew 15:18-20
But the things that come out of the mouth come from the heart, and these things defile a man. / For out of the heart come evil thoughts, murder, adultery, sexual immorality, theft, false testimony, and slander. / These are what defile a man, but eating with unwashed hands does not defile him.”

Ephesians 4:25
Therefore each of you must put off falsehood and speak truthfully to his neighbor, for we are all members of one another.

Colossians 3:9
Do not lie to one another, since you have taken off the old self with its practices,

Revelation 21:8
But to the cowardly and unbelieving and abominable and murderers and sexually immoral and sorcerers and idolaters and all liars, their place will be in the lake that burns with fire and sulfur. This is the second death.”

1 John 2:4
If anyone says, “I know Him,” but does not keep His commandments, he is a liar, and the truth is not in him.

Romans 1:29-31
They have become filled with every kind of wickedness, evil, greed, and depravity. They are full of envy, murder, strife, deceit, and malice. They are gossips, / slanderers, God-haters, insolent, arrogant, and boastful. They invent new forms of evil; they disobey their parents. / They are senseless, faithless, heartless, merciless.

1 Timothy 1:9-10
We realize that law is not enacted for the righteous, but for the lawless and rebellious, for the ungodly and sinful, for the unholy and profane, for killers of father or mother, for murderers, / for the sexually immoral, for homosexuals, for slave traders and liars and perjurers, and for anyone else who is averse to sound teaching

2 Timothy 3:1-5
But understand this: In the last days terrible times will come. / For men will be lovers of themselves, lovers of money, boastful, arrogant, abusive, disobedient to their parents, ungrateful, unholy, / unloving, unforgiving, slanderous, without self-control, brutal, without love of good, ...

Titus 1:10-11
For many are rebellious and full of empty talk and deception, especially those of the circumcision, / who must be silenced. For the sake of dishonorable gain, they undermine entire households and teach things they should not.

Psalm 101:7
No one who practices deceit shall dwell in my house; no one who tells lies shall stand in my presence.

Psalm 120:2-3
Deliver my soul, O LORD, from lying lips and a deceitful tongue. / What will He do to you, and what will be added to you, O deceitful tongue?

Jeremiah 9:3-6
“They bend their tongues like bows; lies prevail over truth in the land. For they proceed from evil to evil, and they do not take Me into account,” declares the LORD. / “Let everyone guard against his neighbor; do not trust any brother, for every brother deals craftily, and every friend spreads slander. / Each one betrays his friend; no one tells the truth. They have taught their tongues to lie; they wear themselves out committing iniquity. ...

Zechariah 8:16-17
These are the things you must do: Speak truth to one another, render true and sound judgments in your gates, / do not plot evil in your hearts against your neighbor, and do not love to swear falsely, for I hate all these things,” declares the LORD.

Exodus 23:1
“You shall not spread a false report. Do not join the wicked by being a malicious witness.