Job 15:5
For your iniquity teaches your mouth, and you choose the language of the crafty.
Job 5:13
He takes the wise in their own craftiness; the counsel of the cunning is carried headlong.
Job 9:22-24
"It is all the same. Therefore I say he destroys the blameless and the wicked.
Job 12:6
The tents of robbers prosper. Those who provoke God are secure, who carry their god in their hands.
Psalm 50:19-20
"You give your mouth to evil. Your tongue frames deceit.
Psalm 52:2-4
Your tongue plots destruction, like a sharp razor, working deceitfully.
Psalm 64:3
who sharpen their tongue like a sword, and aim their arrows, deadly words,
Psalm 120:2-3
Deliver my soul, LORD, from lying lips, from a deceitful tongue.
Jeremiah 9:3-5
"They bend their tongue, as their bow, for falsehood; and they are grown strong in the land, but not for truth: for they proceed from evil to evil, and they do not know me," says the LORD.
Jeremiah 9:8
Their tongue is a deadly arrow; it speaks deceit: one speaks peaceably to his neighbor with his mouth, but in his heart he lies in wait for him.
Mark 7:21-22
For from within, out of the hearts of men, proceed evil thoughts, adulteries, sexual sins, murders, thefts,
Luke 6:45
The good man out of the good treasure of his heart brings out that which is good, and the evil man out of the evil treasure brings out that which is evil, for out of the abundance of the heart, his mouth speaks.
James 1:26
If anyone thinks himself to be religious while he does not bridle his tongue, but deceives his heart, this man's religion is worthless.
James 3:5-8
So the tongue is also a little member, and boasts great things. See how a small fire can spread to a large forest.