Matthew 5:35 in the World English Bible
nor by the earth, for it is the footstool of his feet; nor by Jerusalem, for it is the city of the great King.
Context
34 But I say unto you, Swear not at all; neither by heaven; for it is God’s throne:
35 Nor by the earth; for it is his footstool: neither by Jerusalem; for 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.