Exodus 23:4 commands returning an enemy's lost animal — the same principle of actively helping enemies.

Exodus 23:5 commands helping an enemy's donkey under a load — a direct parallel to doing good to enemies.

1 Samuel 24:16-19 recounts David sparing Saul, a classic example of showing kindness to an enemy as commanded here.

1 Samuel 26:21 records Saul's repentance after David spared him again — another narrative example of enemy kindness.

Psalm 140:10 asks for burning coals of judgment on enemies — Paul reverses this, using coals as a metaphor for shame through kindness.

Proverbs 25:21-22 is the exact source Paul quotes — feeding an enemy heaps burning coals on his head.

Proverbs 25:22 is the exact source Paul quotes — the 'burning coals' metaphor and command to feed an enemy originate from this wisdom text.

In Matthew 5:44, Jesus commands loving enemies — Paul's practical application of feeding an enemy echoes this same radical love ethic.

Genesis 50:21 shows Joseph providing for his brothers who sold him — a powerful OT example of feeding those who harmed you, parallel to Paul's command.

1 Samuel 24:17 records Saul acknowledging David's kindness when David spared him — a clear OT example of returning good for evil as Paul commands.

In 2 Kings 6:22, Elisha orders feeding captured enemies — a direct OT precedent for Paul's command to feed your enemy.

In 2 Chronicles 28:15, the victors feed and clothe their captives — a clear example of showing kindness to defeated enemies.

In 1 Corinthians 4:12, Paul models this command: when reviled, he blesses — a direct apostolic example of feeding an enemy with kindness.

Ephesians 4:32 urges kindness and forgiveness within the church — a broader application of the same heart attitude shown to enemies in Romans 12:20.