Consider Romans 13:10

Romans 13:10 – Love does no wrong to a neighbor;

therefore love is the fulfilling of the law.

Paul mentions the commandments frequently in his writings. He summarizes the keeping of the last six as how to love our neighbor (Romans 13:10). If it is sin to break any of the last six that show love toward fellow man, most certainly it is sin to violate any of the first four that show love toward God.

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