XIII. Thus then and for this cause the written Law came in, gathering us into Christ; and this is the account of the Sacrifices as I account for them. And that you may not be ignorant of the depth of His Wisdom and the riches of His unsearchable judgments, He did not leave even these unhallowed altogether, or useless, or with nothing in them but mere blood. But that great, and if I may say so, in Its first nature unsacrificeable Victim, was intermingled with the Sacrifices of the Law, and was a purification, not for a part of the world, nor for a short time, but for the whole world and for all time. For this reason a Lamb was chosen for its innocence, and its clothing of the original nakedness. For such is the Victim, That was offered for us, Who is both in Name and fact the Garment of incorruption. And He was a perfect Victim not only on account of His Godhead, than which nothing is more perfect; but also on account of that which He assumed having been anointed with Deity, and having become one with That which anointed It, and I am bold to say, made equal with God. A Male, because offered for Adam; or rather the Stronger for the strong, when the first Man had fallen under sin; and chiefly because there is in Him nothing feminine, nothing unmanly; but He burst from the bonds of the Virgin-Mother's womb with much power, and a Male was brought forth by the Prophetess, as Isaiah declares the good tidings. And of a year old, because He is the Sun of Righteousness setting out from heaven, and circumscribed by His visible Nature, and returning unto Himself. And “The blessed crown of Goodness,”— being on every side equal to Himself and alike; and not only this, but also as giving life to all the circle of the virtues, gently commingled and intermixed with each other, according to the Law of Love and Order. And Immaculate and guileless, as being the Healer of faults, and of the defects and taints that come from sin. For though He both took on Him our sins and bare our diseases, yet He did not Himself suffer anything that needed healing. For He was tempted in all points like as we are yet without sin. For he that persecuted the Light that shines in darkness could not overtake Him.
XIV. What more? The First Month is introduced, or rather the beginning of months, whether it was so among the Hebrews from the beginning, or was made so later on this account, and became the first in consequence of the Mystery; and the tenth of the Month, for this is the most complete number, of units the first perfect unit, and the parent of perfection. And it is kept until the fifth day, perhaps because the Victim, of Whom I am speaking, purifies the five senses, from which comes falling into sin, and around which the war rages, inasmuch as they are open to the incitements to sin. And it was chosen, not only out of the lambs, but also out of the inferior species, which are placed on the left hand — the kids; because He is sacrificed not only for the righteous, but also for sinners; and perhaps even more for these, inasmuch as we have greater need of His mercy. And we need not be surprised that a lamb for a house should be required as the best course, but if that could not be, then one might be obtained by contributions (owing to poverty) for the houses of a family; because it is clearly best that each individual should suffice for his own perfecting, and should offer his own living sacrifice holy unto God Who called him, being consecrated at all times and in every respect. But if that cannot be, then that those who are akin in virtue and of like disposition should be made use of as helpers. For I think this provision means that we should communicate of the Sacrifice to those who are nearest, if there be need.
XV. Then comes the Sacred Night, the Anniversary of the confused darkness of the present life, into which the primæval darkness is dissolved, and all things come into life and rank and form, and that which was chaos is reduced to order. Then we flee from Egypt, that is from sullen persecuting sin; and from Pharaoh the unseen tyrant, and the bitter taskmasters, changing our quarters to the world above; and are delivered from the clay and the brickmaking, and from the husks and dangers of this fleshly condition, which for most men is only not overpowered by mere husklike calculations. Then the Lamb is slain, and act and word are sealed with the Precious Blood; that is, habit and action, the sideposts of our doors; I mean, of course, of the movements of mind and opinion, which are rightly opened and closed by contemplation, since there is a limit even to thoughts. Then the last and gravest plague upon the persecutors, truly worthy of the night; and Egypt mourns the first-born of her own reasonings and actions which are also called in the Scripture the Seed of the Chaldeans removed, and the children of Babylon dashed against the rocks and destroyed; and the whole air is full of the cry and clamour of the Egyptians; and then the Destroyer of them shall withdraw from us in reverence of the Unction. Then the removal of leaven; that is, of the old and sour wickedness, not of that which is quickening and makes bread; for seven days, a number which is of all the most mystical, and is co-ordinate with this present world, that we may not lay in provision of any Egyptian dough, or relic of Pharisaic or ungodly teaching.
XVI. Well, let them lament; we will feed on the Lamb toward evening— for Christ's Passion was in the completion of the ages; because too He communicated His Disciples in the evening with His Sacrament, destroying the darkness of sin; and not sodden, but roast— that our word may have in it nothing that is unconsidered or watery, or easily made away with; but may be entirely consistent and solid, and free from all that is impure and from all vanity. And let us be aided by the good coals, kindling and purifying our minds from Him That comes to send fire on the earth, that shall destroy all evil habits, and to hasten its kindling. Whatsoever then there be, of solid and nourishing in the Word, shall be eaten with the inward parts and hidden things of the mind, and shall be consumed and given up to spiritual digestion; aye, from head to foot, that is, from the first contemplations of Godhead to the very last thoughts about the Incarnation. Neither let us carry anything of it abroad, nor leave it till the morning; because most of our Mysteries may not be carried out to them that are outside, nor is there beyond this night any further purification; and procrastination is not creditable to those who have a share in the Word. For just as it is good and well-pleasing to God not to let anger last through the day, but to get rid of it before sunset, whether you take this of time or in a mystical sense, for it is not safe for us that the Sun of Righteousness should go down upon our wrath; so too we ought not to let such Food remain all night, nor to put it off till tomorrow. But whatever is of bony nature and not fit for food and hard for us even to understand, this must not be broken; that is, badly divined and misconceived (I need not say that in the history not a bone of Jesus was broken, even though His death was hastened by His crucifiers on account of the Sabbath); nor must it be stripped off and thrown away, lest that which is holy should be given to the dogs, that is, to the evil hearers of the Word; just as the glorious pearl of the Word is not to be cast before swine; but it shall be consumed with the fire with which the burnt offerings also are consumed, being refined and preserved by the Spirit That searches and knows all things, not destroyed in the waters, nor scattered abroad as the calf's head which was hastily made by Israel was by Moses, for a reproach for their hardness of heart.
Source: Orations (New Advent)