Early Christian Quotes on Conscience

Justin Martyr’s Dialog with Trypho (Mid-2nd Century) Chapter 93:

For [God] sets before every race of mankind that which is always and universally just, as well as all righteousness; and every race knows that adultery, and fornication, and homicide, and such like, are sinful; and though they all commit such practices, yet they do not escape from the knowledge that they act unrighteously whenever they so do, with the exception of those who are possessed with an unclean spirit, and who have been debased by education, by wicked customs, and by sinful institutions, and who have lost, or rather quenched and put under, their natural ideas. For we may see that such persons are unwilling to submit to the same things which they inflict upon others, and reproach each other with hostile consciences for the acts which they perpetrate.

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Find more of what the early Christians thought on my Christian History page!