Matthew 5:36 DBY

³⁴  But *I* say unto you, Do not swear at all; neither by the heaven, because it is [the] throne of God;

³⁵  nor by the earth, because it is [the] footstool of his feet; nor by Jerusalem, because it is [the] city of the great King.

³⁶  Neither shalt thou swear by thy head, because thou canst not make one hair white or black.

³⁷  But let your word be Yea, yea; Nay, nay; but what is more than these is from evil.

³⁸  Ye have heard that it has been said, Eye for eye and tooth for tooth.