Matthew 5:33-35

Revised Standard Version Catholic Edition

Concerning Oaths

³³ “Again you have heard that it was said to the men of old, ‘You shall not swear falsely, but shall perform to the Lord what you have sworn.’ ³⁴ But I say to you, Do not swear at all, either by heaven, for it is the throne of God, ³⁵ or by the earth, for it is his footstool, or by Jerusalem, for it is the city of the great King.