Matthew 5:34-37
Read this passage and open each verse for the full verse feed and commentary tools.
34But I say to you, take no oath at all, neither by heaven, for it is the throne of God, 35nor by the earth, for it is the footstool of His feet, nor by Jerusalem, for it is the city of the great King. 36Nor shall you take an oath by your head, for you cannot make a single hair white or black. 37But make sure your statement is, ‘Yes, yes’ or ‘No, no’; anything beyond these is of evil origin.