Nor shall you make an oath by your head, for you cannot make one hair white or black.
or by the earth, for it is the footstool of His feet, or by Jerusalem, for it is the city of the great King.
But let your statement be, ‘Yes, yes’ or ‘No, no’; anything beyond these is of the evil one.
And which of you by worrying can add a single cubit to his life span?