Leviticus 24:20

“But withal the blessed patriarchs,” you say, “made mingled alliances not only with more wives (than one), but with concubines likewise.” Shall that, then, make it lawful for us also to marry without limit? I grant that it will, if there still remain types, sacraments of something future, for your nuptials to figure; or if even now there is room for that command, “Grow and multiply;” that is, if no other command has yet supervened: “The time is already wound up; it remains that both they who have wives act as if they had not:” for, of course, by enjoining continence, and restraining concubitance, the seminary of our race, (this latter command) has abolished that “Grow and multiply.” As I think, moreover, each pronouncement and arrangement is (the act) of one and the same God; who did then indeed, in the beginning, send forth a sowing of the race by an indulgent laxity granted to the rein …

However, it is right not to overlook what a little before came into my recollection, and was brought forward for a testimony. And what then was this? We were speaking of the Jews, and of the chief rulers amongst them, how that they were blamed, as seeking retaliation. And yet this the law permitted them; “eye for eye, and tooth for tooth.” ( Lev. xxiv. 20 .) True, but not to the intent that men should pluck out each other’s eyes, but that they should check boldness in aggression, by fear of suffering in return, and thus should neither do any evil to others, nor suffer any evil from others themselves. Therefore it was said, “eye for eye,” to bind the hands of the aggressor, not to let thine loose against him; not to ward off the hurt from thine eyes only, but also to preserve his eyes safe and sound.

Why have we said these things? Because we differ in nothing from children. Wilt thou hear their doctrines also, that they are those of children? “Eye for eye,” it is said, “and tooth for tooth.” ( Lev. xxiv. 20 .) For nothing is so eager to revenge as a childish mind. For seeing it is a passion of irrationality, and there is much irrationality, and great lack of consideration in that age, no wonder the child is tyrannized over by anger; and so great is the tyranny, that ofttimes after stumbling and getting up again, they will smite their knee for passion, or overturn the footstool, and so will allay their pain, and quench their rage. In some such way as this did God also deal with them, when He allowed them to strike out “Eye for eye, and tooth for tooth,” and destroyed the Egyptians and the Amalekites that had grieved them. …