Subsections 13(6) and 42(1)
OATH
I, A.B ., do swear that I will be faithful and bear true allegiance to (insert name of the Sovereign), (insert applicable pronoun, such as 'His' or 'Her') heirs and successors according to law: So help me God!
AFFIRMATION
I, A.B ., do solemnly and sincerely affirm and declare that I will be faithful and bear true allegiance to (insert name of the Sovereign), (insert applicable pronoun, such as 'His' or 'Her') heirs and successors according to law.