LVII. (165) Collect therefore, O my soul, what is sufficient and proper, and in such a quantity as shall neither exceed by being more than is sufficient, nor fall short by being less than what is requisite: that so, using just measures you may not be led into the commission of injustice. For while meditating on the migration from the passions and sacrificing the passover you ought to take the advance towards perfection, that is to say the sheep, in a moderate spirit. "For each person of you," says Moses, "shall take a sheep, such as shall be sufficient for him according to the number of his House."[Ex 12:4.] (166) And in the case of the manna therefore, and of every gift which God gives to the race of mankind, the principle being guided by numbering and by measure, and of not taking what is more than is necessary for us, is good; for the opposite conduct is covetousness. Let therefore one soul collect what is sufficient for it from day to day, [Ex 12:4.] that is may show that it is not itself which is the guardian of good things, but the bounteous giver, God.