Matthew 5:33-37

³³“Again, you have heard that the ancients were told, ‘You shall not make false vows, but shall fulfill your vows to the Lord.’ ³⁴But I say to you, make no oath at all, either by heaven, for it is the throne of God, ³⁵or by the earth, for it is the footstool of His feet, or by Jerusalem, for it is the city of the great King. ³⁶Nor shall you make an oath by your head, for you cannot make one hair white or black. ³⁷But let your statement be, ‘Yes, yes’ or ‘No, no’; anything beyond these is of evil.