Romans 10:3 explains the lack of knowledge: ignorance of God's righteousness and seeking their own.

Romans 9:32 reveals the root cause: they sought righteousness by works, not faith, leading to their stumbling.

Romans 9:31 shows Israel pursued law-righteousness but did not attain — the same failure behind their misguided zeal.

In Philippians 3:6, Paul's own former zeal as a Pharisee, persecuting the church, exemplifies this same misplaced zeal without knowledge.

Philippians 1:9 prays for love to abound in knowledge — the opposite of the misguided zeal here. This shows what 'according to knowledge' looks like.

In Galatians 1:14, Paul recalls his extreme zeal for Jewish traditions—the same misplaced zeal he later condemns in Romans 10:2.

In Acts 26:10, Paul details his zealous persecution of Christians—concrete proof of zeal without knowledge.

In Acts 26:9, Paul says he was convinced he must oppose Jesus—a classic case of zeal for God without knowledge.

In Acts 22:3, Paul describes his own former zeal for God—exactly the kind of misguided zeal he later identifies in Israel.

In Acts 21:28, the crowd's false accusation against Paul reveals their zeal for the law and temple without understanding God's plan.

In John 16:2, Jesus warns that people will kill believers thinking they serve God—the same misplaced zeal that lacks true knowledge.

In Acts 13:50, Jewish leaders persecute Paul, demonstrating misguided zeal that opposes God's messengers while thinking they serve God.

Numbers 25:13 commends Phinehas' zeal for God — a positive example where zeal was rightly directed, unlike the ignorance Paul describes.

In John 9:24, the Pharisees insist Jesus is a sinner, showing zeal for God while rejecting the truth — a clear case of zeal without knowledge.

Matthew 5:20 warns that righteousness must exceed the Pharisees' — directly relevant to Israel's misdirected zeal here.

2 Samuel 21:2 explicitly mentions Saul's 'zeal' that led him to break the covenant with Gibeonites — a clear example of zeal without knowledge.

In Luke 18:21, the rich young ruler's claim to have kept the law reveals similar misplaced confidence — zeal without true understanding of God's deeper demand.

In 2 Kings 10:16, Jehu claims zeal for the LORD, yet his zeal is violent and self-serving—an OT example of misguided religious fervor.

2 Corinthians 4:4 describes Satan blinding unbelievers, which may explain the lack of knowledge behind Israel's zeal.

In Acts 21:20, Jewish believers are described as zealous for the law—showing zeal can coexist with faith, unlike the blind zeal Paul critiques.

Proverbs 19:2 states that being without knowledge is not good — a general principle that applies to the misguided zeal here.

1 Samuel 14:24 shows Saul's rash curse on eating — zeal for victory that leads to distress, mirroring zeal without discernment.

Judges 17:13 shows Micah's superstitious confidence that having a Levite guarantees blessing — misguided religious zeal without true knowledge.

Joshua 22:12 shows Israel nearly waging war based on assumption — zeal for purity without checking facts, mirroring zeal without knowledge.

Judges 21:1 records a rash oath by Israel — acting zealously without considering consequences, similar to zeal without knowledge.