Definitions for "good law"
a blessing because it can correct the malicious but even the worst law and most perverse ruler cannot destroy our freedom to choose God
a law that accurately captures the values and practices of a community, and expresses those values in terms of principles that can be applied to various situations
a law that a person with good desires would support, and a person with good desires is a person who has those desires that tend toward the fulfillment of desires generally, and lacks those desires that tend to thwart desires generally