Early Christian Quotes on the Forgiveness of Sins Committed Out of Ignorance
Preaching of Peter (Early to Mid-2nd Century):
Whatsoever things any of you did in ignorance, not knowing God clearly, all his sins shall be forgiven him.
The Acts of Peter (Mid to Late 2nd Century) Part 3, Paragraph 2:
Men and brethren which now have begun to believe on Christ, if ye continue not in your former works of the tradition of your fathers, and keep yourselves from all guile and wrath and fierceness and adultery and defilement, and from pride and envy and contempt and enmity, Jesus the living God will forgive you that ye did in ignorance.
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Find more of what the early Christians thought on my Christian History page!