De Virtutibus

But the lawgiver here, going beyond all the ordinary boundaries of humanity, thinks it fitting and ordains that such sojourners shall bear no ill-will even to those men who, after having received them in the land, may have ill-treated them, since, though their actions may not have been kind, their name at least resembles the characteristics of humanity. Therefore he says, in express terms, "Thou shalt not curse the Egyptian, because thou wast a sojourner in the land of Egypt." [*]( Deuteronomy xxvii 3. )

And yet what evil did the Egyptians ever omit to inflict upon this nation, being continually adding new devices of cruelty to the old ones, and proceeding by all sorts of fresh contrivances to heap inhumanity on inhumanity? But, nevertheless, because originally they received them in the land, not shutting their cities against them, and not making their country inaccessible to them when they first came, the lawgiver says, "Let them, as a reward for their friendly reception of you, have a treaty of peace with you.

And if any of them should be willing to forsake their old ways and to come over to the customs and constitutions of the Jews, they are not to be rejected and treated with hostility as the children of enemies, but to be received in such a manner that in the third generation they may be admitted into the assembly, and may [*]( Deuteronomy xxvii 3. )