• Matthew 12:34-37
  Brood of vipers! How can you, being evil, speak good things? For out of the abundance of the heart the mouth speaks. A good man out of the good treasure of his heart brings forth good things, and an evil man out of the evil treasure brings forth evil things. But I say to you that for every idle word men may speak, they will give account of it in the day of judgment. For by your words you will be justified, and by your words you will be condemned."
   
• James 3:2
  For we all stumble in many things. If anyone does not stumble in word, he is a perfect man, able also to bridle the whole body.
   
• Ecclesiastes 5:1-3
  Walk prudently when you go to the house of God; and draw near to hear rather than to give the sacrifice of fools, for they do not know that they do evil.
  Do not be rash with your mouth,
  And let not your heart utter anything hastily before God.
  For God is in heaven, and you on earth;
  Therefore let your words be few.
  For a dream comes through much activity,
  And a fool's voice is known by his many words.
  
   
• Ecclesiastes 5:6-7
  Do not let your mouth cause your flesh to sin, nor say before the messenger of God that it was an error. Why should God be angry at your excuse and destroy the work of your hands? For in the multitude of dreams and many words there is also vanity. But fear God.
   

Related Scriptures

• Proverbs 10:19
  In the multitude of words sin is not lacking,
  But he who restrains his lips is wise.
  
   
• Proverbs 17:27
  He who has knowledge spares his words,
  And a man of understanding is of a calm spirit.