• Matthew 5:33-34
  "Again you have heard that it was said to those of old, 'You shall not swear falsely, but shall perform your oaths to the Lord.' But I say to you, do not swear at all: neither by heaven, for it is God's throne;
   
• James 5:12
  But above all, my brethren, do not swear, either by heaven or by earth or with any other oath. But let your "Yes" be "Yes," and your "No," "No," lest you fall into judgment.
   

Related Scriptures

• 2 Timothy 2:13
  If we are faithless, He remains faithful;
  He cannot deny Himself.
   
• Exodus 20:16
  "You shall not bear false witness against your neighbor.