^33-37 “Again, you have heard that the people in the old days were told—‘You shall not swear falsely, but shall perform your oaths to the Lord’, but I say to you, don’t use an oath at all. Don’t swear by Heaven for it is God’s throne, nor by the earth for it is his footstool, nor by Jerusalem for it is the city of the great king. No, and don’t swear by your own head, for you cannot make a single hair—white or black! Whatever you have to say let your ‘yes’ be a plain ‘yes’ and your ‘no’ a plain ‘no’—anything more than this has a taint of evil.