Matthew 5:33-35

New Revised Standard Version, Anglicised Catholic Edition

Concerning Oaths

³³ ‘Again, you have heard that it was said to those of ancient times, “You shall not swear falsely, but carry out the vows you have made to the Lord.” 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.