Matthew 5:36

The English Standar Version

And do not take an oath by your head, for you cannot make one hair white or black.

See the chapter Copy

And which of you by being anxious can add a single hour to his span of life?[3]

And which of you by being anxious can add a single hour to his span of life?[7]

or by the earth, for it is his footstool, or by Jerusalem, for it is the city of the great King.

Let what you say be simply 'Yes' or 'No'; anything more than this comes from evil.[6]