Leviticus 10:20

And when Moses heard that, he was content, literally, "it was good in his eyes," he was satisfied that no disregard of the Lord's precepts was intended, that the circumstances warranted Aaron and his sons in acting as they did. The law of love is the highest law and supersedes all others. It was so in the Old Testament, as it is in the New, that God desired mercy rather than sacrifice.

And whosoever lieth carnally with a woman that is a bondmaid, a slave, betrothed to an husband, probably after the manner spoken of Exodus 21:7, and not at all redeemed, nor freedom given her, these being the two ways in which a slave could gain his liberty; she shall be scourged, or rather, there shall be a punishment of both guilty persons; they shall not be put to death, because she was not free and could not legally contract marriage.