One of my favorite scriptures I want to share with you...
"Consequently, just as one trespass resulted in condemnation for all people, so also one righteous act resulted in justification and life for all people. Roman 5:18 NIV
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Simply: sin that Adam fell to in the Garden of Eden, and it's consequence that fell thereafter on the human race was nullified in full by the righteous act of Jesus when he died on the cross!