"Of the substance of the Virgin Mary his mother": Cranmer's Christmas preface

1552 & 1559: Upon Christmas daye, and seven dayes after. BECAUSE thou diddest geve Jesus Christ, thine onely sonne, to be borne as this daye for us, who by the operacion of the holy goste, was made very man, of the substaunce of the Virgin Mary his mother, and that without spot of synne, to make us cleane from al synne. 1662: Upon Christmas Day, and seven days after. BECAUSE thou didst give Jesus Christ thine only Son to be born as at this time for us; who, by the operation of the Holy Ghost, was made very man of the substance of the Virgin Mary his mother; and that without spot of sin, to make us clean from all sin. Therefore with Angels, &c. While Cranmer retained the traditional Latin proper prefaces for most feasts, he did not do so for Christmas (and Whitsun). The contrast with the traditional Latin preface for the Christmas octave is most interesting: Quia per incarnáti Verbi mystérium, nova mentis nostræ óculis lux tuæ clarit...