THE PARLIAMENTARY OATH
By law, British MPs and Peers must swear an oath (or make an affirmation) of allegiance before they can take their seat in Parliament, enter the Chamber, participate in proceedings, or table motions or questions. The current Parliamentary Oath is:
I ________ (swear by Almighty God) or (do swear) or (do solemnly, sincerely, and truly declare and affirm) that I will be faithful and bear true allegiance to Her Majesty Queen Elizabeth, her heirs and successors, according to law. So help me God.
The oath must be sworn by MPs and Peers at each new Parliament, and on the accession of a new monarch. Furthermore, the oath must be said in English, though MPs have been allowed to recite Gaelic and Welsh versions in addition.
John Ford (c.1586-c.1640)