Lactantius

“ For if false witness by falsehood is injurious to him against whom it is spoken, and deceives him in whose presence it is spoken, we must therefore never speak falsely, because falsehood always deceives or injures. ”

“ He must not be harsh towards a son, nor towards a slave: he must remember that he himself has a Father and a Master. He will so act towards these as he will wish that others should act towards him. He will not receive excessive gifts from those who have less resources than himself; for it is not just that the estates of the wealthy should be increased by the losses of the wretched.
It is an old precept not to kill, which ought not to be taken in this light, as though we are commanded to abstain only from homicide, which is punished even by public laws. ”

“ He will speak nothing deceitfully, nothing with dissimulation; he will not refuse that which he has promised, nor will he promise that which he is unable to perform; he will envy no one, since he is content with himself and with his own possessions ”

“ He will not steal, nor will he covet anything at all belonging to another. He will not give his money to usury, for that is to seek after gain from the evils of others; nor, however, will he refuse to lend, if necessity shall compel any one to borrow. ”