Page:Ecclesiastical History of the English Nation (tr. Jane).djvu/308

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week. And they are sometimes mistaken, not only in defining and computing the moon's age, but also in finding the first month; but this controversy is longer than can or ought to be contained in this letter. I will only say thus much, that by the vernal equinox, it may always be found, without the chance of an error, which is the first month of the year, according to the lunar calculation, and which the last. But the equinox, according to the opinion of all the Eastern nations, and particularly of the Egyptians who exceed all other learned men in that calculation, usually happens on the twelfth day before the kalends of April, as we also prove by horological inspection. Whatever moon therefore is at the full before the equinox, being on the fourteenth or fifteenth day, the same belongs to the last month of the foregoing year, and consequently is not proper for the celebration of Easter; but that moon which is full after the equinox, or on the very equinox, belongs to the first month, and in it, without a doubt, the ancients were wont to celebrate the Passover; and we also ought to keep Easter when the Sunday comes. And that this must be so, there is this cogent reason, because it is written in Genesis, that 'God made two lights; a greater light to rule the day, and a lesser light to rule the night.' Or, as another edition has it, 'A greater light to begin the day, and a lesser to begin the night.' The sun, therefore, proceeding from the midst of the east, fixed the vernal equinox by his rising, and afterwards the moon, when the sun set in the evening, followed full from the midst of the east; thus every year the same first month of the moon must be observed in the like order, so that the full moon must be either on the very day of the equinox, as was done from the beginning, or after it is gone by. But if the full of the moon shall happen to be but one day before the time of the equinox, the aforesaid reason proves that such moon is not to be assigned to the first month of the new year, but rather to the last of the preceding, and that it is therefore not proper for the celebration of the Paschal festival.

"Now if it will please you likewise to hear the mystical reason in this matter, we are commanded to keep Easter in the first month of the year, which is also called the month of the new fruit, because we are to celebrate the mysteries of our Lord's resurrection and our deliverance,