Cross reference
Proverbs 17:20
20 Nothing good comes to him whose heart is fixed on evil purposes: and he who has an evil tongue will come to trouble.
Proverbs 18:6-7
6 A foolish man's lips are a cause of fighting, and his mouth makes him open to blows.
7 The mouth of a foolish man is his destruction, and his lips are a net for his soul.
Proverbs 10:31
31 The mouth of the upright man is budding with wisdom, but the twisted tongue will be cut off.
James 3:6-8
6 And the tongue is a fire; it is the power of evil placed in our bodies, making all the body unclean, putting the wheel of life on fire, and getting its fire from hell.
7 For every sort of beast and bird and every living thing on earth and in the sea has been controlled by man and is under his authority;
8 But the tongue may not be controlled by man; it is an unresting evil, it is full of the poison of death.
Ecclesiastes 10:12
12 The words of a wise man's mouth are sweet to all, but the lips of a foolish man are his destruction.
Proverbs 10:14
14 Knowledge is stored up by the wise, but the mouth of the foolish man is a destruction which is near.
Proverbs 10:10
10 He who makes signs with his eyes is a cause of trouble, but he who makes a man see his errors is a cause of peace.
Proverbs 8:13
13 The fear of the Lord is seen in hating evil: pride, a high opinion of oneself, the evil way, and the false tongue, are unpleasing to me.
Proverbs 6:12-15
12 A good-for-nothing man is an evil-doer; he goes on his way causing trouble with false words;
13 Making signs with his eyes, rubbing with his feet, and giving news with his fingers;
14 His mind is ever designing evil: he lets loose violent acts.
15 For this cause his downfall will be sudden; quickly he will be broken, and there will be no help for him.
Proverbs 3:32
32 For the wrong-hearted man is hated by the Lord, but he is a friend to the upright.
Psalms 18:26
26 He who is holy will see that you are holy; but to the man whose way is not straight you will be a hard judge.