33"Again you have heard that it was said to those of old, 'You shall not swear falsely, but shall perform to the Lord what you have sworn.' 34But I say to you, Do not take an oath at all, either by heaven, for it is the throne of God, 35or by the earth, for it is his footstool, or by Jerusalem, for it is the city of the great King.
36And do not take an oath by your head, for you cannot make one hair white or black. 37Let what you say be simply 'Yes' or 'No'; anything more than this comes from evil.Or the evil one
The Holy Bible, English Standard Version copyright (c)2001 by Crossway Bibles, a division of Good News Publishers. Used by permission. All rights reserved. http://www.esv.org