Targum su Levitico 22:27

(to the effect that): What time thou callest to our mind the order of our oblations, as they shall be offered year by year, being our expiatory offering for our sins, when on account of our sins (such sacrifices are required), and we have none to bring from our flocks of sheep, then shall a bullock be chosen before him, in memorial of the righteousness of the elder who came from the cast, the sincere one who brought the calf, fat and tender, to Thy Name. A sheep is to be chosen, secondly, in memory of the righteousness of him who was bound as a lamb on the altar, and who stretched forth his neck for Thy Name's sake, while the heavens stooped down and condescended, and Izhak beheld their foundations, and his eyes were blinded by the high things; on which account he was reckoned to be worthy that a lamb should be provided for him as a burnt offering. A kid of the goats is to be chosen likewise, in memorial of the righteousness of that perfect one who made the savoury meat of the kid, and brought it to his father, and was made worthy to receive the order of the blessing: wherefore Mosheh the prophet explaineth, saying: Sons of Israel, my people, When a bullock, or a lamb, or a kid is brought forth according, to the manner of the world, it shall be seven days after its dam, that there may be evidence that it is not imperfect; and on the eighth day and thenceforth, it is acceptable to be offered an oblation to the Name of the Lord.

In the time that thou remindest us of the order of the oblations as they are to be offered year by year; our offerings are to make atonement for our sins. But when our sins have given occasion, and we have not wherewith to bring from our flocks of sheep, a bullock is to be chosen before Me to recall to remembrance­ the elder of the east, sincere altogether, Who brought to Thy Name a calf tender and good, Which he gave to the young man, who basted to dress it, and to bake unleavened cakes; and the angels did eat, and be was accounted worthy to receive the announcement that, behold, Sarah should give birth to Izhak. A lamb is to be chosen, secondly, to call to remembrance the righteousness of the prince who suffered himself to be bound upon the alter, and stretched forth his neck for Thy Name's sake; when the heavens stooped down and condescended, and Izhak beheld their foundations, and his eyes were blinded by the high things (or, from the heights), on which account be was held worthy that a lamb should be provided in his stead for a burnt offering. A kid of the goats also is to be chosen, to call to remembrance the righteousness of that perfect one who put on the skins of the kids, and made savory meat, and brought of his viands unto his father, and gave wine to him to drink; on account of which he was held worthy to receive the orders of blessings from Izhak his father, that the twelve sacred tribes should arise to Thy Name. Behold, then, how Mosheh, the prophet of the Lord, expoundeth, and saith, Sons of Israel, my people, When a bullock, or a lamb, or a goat is brought forth, it shall be seven days after its dam; on the eighth day and thenceforth it shall be fit to be offered as an oblation to the Name of the Lord.