Letters

²⁸ The Fast of Forty Days has its warrant both in the Old Testament, from the fasting of Moses and of Elijah, and in the Gospel from the fact that our Lord fasted the same number of days; proving thereby that the Gospel is not at variance with the Law and the Prophets. For the Law and the Prophets are represented in the persons of Moses and Elijah respectively; between whom also He appeared in glory on the Mount, that what the apostle says of Him, that He is “witnessed unto both by the Law and the Prophets,” might be made more clearly manifest.

Now, in what part of the year could the observance of the Fast of Forty Days be more appropriately placed, than in that which immediately precedes and borders on the time of the Lord's Passion? For by it is signified this life of toil, the chief work in which is to exercise self-control, in abstaining from the world's friendship, which never ceases deceitfully caressing us, and scattering profusely around us its bewitching allurements. As to the reason why this life of toil and self-control is symbolized by the number 40, it seems to me that the number ten (in which is the perfection of our blessedness, as in the number eight, because it returns to the unit) has a like place in this number [as the unit has in giving its significance to eight]; and therefore I regard the number forty as a fit symbol for this life, because in it the creature (of which the symbolic number is seven) cleaves to the Creator, in whom is revealed that unity of the Trinity which is to be published while time lasts throughout this whole world—a world swept by four winds, constituted of four elements, and experiencing the changes of four seasons in the year. Now four times ten [seven added to three] are forty; but the number forty reckoned in along with [one of] its parts adds the number ten, [as seven reckoned in along with one of its parts adds the unit,] and the total is fifty—the symbol, as it were, of the reward of the toil and self-control. For it is not without reason that the Lord Himself continued for forty days on this earth and in this life in fellowship with His disciples after His resurrection, and, when He ascended into heaven, sent the promised Holy Spirit, after an interval of ten days more, when the day of Pentecost was fully come. This fiftieth day, moreover, has wrapped up in it another holy mystery: for 7 times 7 days are 49. And when we return to the beginning of another seven, and add the eighth, which is also the first day of the week, we have the 50 days complete; which period of fifty days we celebrate after the Lord's resurrection, as representing not toil, but rest and gladness. For this reason we do not fast in them; and in praying we stand upright, which is an emblem of resurrection. Hence, also, every Lord's day during the fifty days, this usage is observed at the altar, and the Alleluia is sung, which signifies that our future exercise shall consist wholly in praising God, as it is written: “Blessed are they who dwell in Your house, O Lord: they will be still (i.e. eternally) praising You.”