Matthew 12:35-37
The good man, from his good treasure, bringeth out good things; and the evil man, from his evil treasure, bringeth out evil things.
Hebrews 4:12-13
For the word of God is living, and powerful, and sharper than any twoedged sword, piercing even to the dividing asunder of soul and spirit, both the joints and marrow, and is a discerner of the thoughts and intents of the heart;
James 1:26
If any one thinks that he is religious, and bridles not his tongue, but deceives his own heart, this mans religion is vain.
James 3:2-10
For in many things we all offend. If any one offend not in speech, the same is a perfect man, able to bridle the whole body also.