Philo Judaeus De Congressu Eruditionis Gratia 106

[106] This is, to speak properly, the spiritual passover of the soul, the passing over of all the passions and of every object of the outward senses to the tenth, which is the proper object of the intellect, and which is divine. For it is said in the scripture: "On the tenth day of this month let each of them take a sheep according to his house; " ¹ in order that from the tenth, there may be consecrated to the tenth, that is to God, the sacrifices which have been preserved in the soul, which is illuminated in two portions out of the three, until it is entirely changed in every part, and becomes a heavenly brilliancy like a full moon, at the height of its ^{2 3} increase at the end of the second week, and so is able not only to guard, but even to sacrifice uninjured and faultless improvements, that is to say, propitiations.