Matthew 5:33-37
<p><a href="http://bible.cc/matthew/5-33.htm" ><b>33</b></a>Again, ye have heard that it hath been said by them of old time, Thou shalt not forswear thyself, but shalt perform unto the Lord thine oaths: 
<a href="http://bible.cc/matthew/5-34.htm" ><b>34</b></a>But I say unto you, Swear not at all; neither by heaven; for it is God's throne: 
<a href="http://bible.cc/matthew/5-35.htm" ><b>35</b></a>Nor by the earth; for it is his footstool: neither by Jerusalem; for it is the city of the great King. 
<a href="http://bible.cc/matthew/5-36.htm" ><b>36</b></a>Neither shalt thou swear by thy head, because thou canst not make one hair white or black.
 <a href="http://bible.cc/matthew/5-37.htm" ><b>37</b></a>But let your communication be, Yea, yea; Nay, nay: for<b> whatsoever is more than these cometh of evil.</b></p>