Answer:
What Finney is saying is that, if legislation is made by the government based on underlying moral principles (he refers to this moral principles as moral law), then, said legislation is as valid as the moral principles than inspired them.
For this reason, citizens are obliged to respect the legislation, because this act is equivalent to acting under one's own moral principles.
Because of how strong the attack was
Is there a reading that went along with this? or is it a single standing question?