Psalm 50:19
"You give your mouth free rein for evil, and your tongue frames deceit.
Psalm 10:7
His mouth is filled with cursing and deceit and oppression; under his tongue are mischief and iniquity.
Psalm 5:9
For there is no truth in their mouth; their inmost self is destruction; their throat is an open grave; they flatter with their tongue.
Psalm 12:2-3
Everyone utters lies to his neighbor; with flattering lips and a double heart they speak.
Psalm 36:3-4
The words of his mouth are trouble and deceit; he has ceased to act wisely and do good.
Psalm 52:2-4
Your tongue plots destruction, like a sharp razor, you worker of deceit.
Psalm 55:12
For it is not an enemy who taunts me-- then I could bear it; it is not an adversary who deals insolently with me-- then I could hide from him.
Psalm 55:21
His speech was smooth as butter, yet war was in his heart; his words were softer than oil, yet they were drawn swords.
Psalm 64:3-5
who whet their tongues like swords, who aim bitter words like arrows,
Isaiah 59:3-4
For your hands are defiled with blood and your fingers with iniquity; your lips have spoken lies; your tongue mutters wickedness.
Jeremiah 9:5
Everyone deceives his neighbor, and no one speaks the truth; they have taught their tongue to speak lies; they weary themselves committing iniquity.
Hosea 4:2
there is swearing, lying, murder, stealing, and committing adultery; they break all bounds, and bloodshed follows bloodshed.
Romans 3:13-14
"Their throat is an open grave; they use their tongues to deceive." "The venom of asps is under their lips."
James 3:5-9
So also the tongue is a small member, yet it boasts of great things. How great a forest is set ablaze by such a small fire!
Revelation 21:8
But as for the cowardly, the faithless, the detestable, as for murderers, the sexually immoral, sorcerers, idolaters, and all liars, their portion will be in the lake that burns with fire and sulfur, which is the second death."