Matthew 5:33-35

Twentieth_Century(i) 33 Again, you have heard that to our ancestors it was said--'Thou shalt not break an oath, but thou shall keep thine oaths as a debt due to the Lord.' 34 I, however, say to you that you must not swear at all, either by Heaven, since that is God's throne, 35 Or by the earth, since that is his footstool, or by Jerusalem, since that is the city of the Great King.