In Romans 13:8, Paul introduces the idea that loving another fulfills the law, which Romans 13:10 then restates and concludes. The cross-reference provides the premise.

In Romans 14:15, Paul warns that causing a brother grief by eating is not walking in love — a practical case of love doing no harm, as stated in Romans 13:10.

In Matthew 22:39, Jesus commands to love your neighbor as yourself — the very love Paul says fulfills the law here. A direct thematic source.

In Matthew 22:40, Jesus declares that the entire Law and Prophets hang on love for God and neighbor — the same principle Paul applies here to neighbor-love fulfilling the law.

In 1 Corinthians 13:4-7, love's attributes are detailed — patient, kind, not irritable — showing concretely how love does no wrong, supporting the claim that love fulfills the law.

1 John 4:21 commands loving brother as necessary for loving God — connecting love for neighbor to divine command, echoing Romans 13:10's link between love and law.

Psalm 15:3 describes the righteous as one who does no evil to his neighbor — a specific example of the love that 'does no wrong' in Romans 13:10.

In Luke 3:14, John instructs soldiers not to extort or falsely accuse — concrete ways of not wronging a neighbor, illustrating the principle in Romans 13:10.