What does Jude 1:10 mean?
What is the meaning of Jude 1:10?

These men, however

• Jude points back to the impostors he has already exposed (vv. 4–9).

• They have “crept in unnoticed,” twisting grace into license, denying “our only Master and Lord, Jesus Christ” (v. 4).

• Scripture repeatedly warns that such counterfeit believers will arise—2 Peter 2:1 says, “There will be false teachers among you,” while Acts 20:29–30 pictures “savage wolves” entering the flock.

• By using “however,” Jude contrasts these men with genuine believers “kept for Jesus Christ” (v. 1); the line between them is clear and absolute.


slander what they do not understand

• The word “slander” (or “blaspheme”) shows open contempt. Like those in 1 Corinthians 2:14—“The natural man does not accept the things of the Spirit of God”—they speak evil of truths beyond their spiritual grasp.

• Examples in Scripture:

– Mocking the promise of Christ’s return (2 Peter 3:3–4).

– Ridiculing angelic authority (Jude 1:8–9).

– Dismissing God’s moral standards (Romans 1:32).

• Their arrogance fulfills Proverbs 18:2: “A fool finds no pleasure in understanding, but delights in airing his opinions.”


and like irrational animals

• Jude likens them to creatures driven purely by appetite, not reason.

2 Peter 2:12 parallels this: “These men are like irrational animals, creatures of instinct, born to be captured and destroyed.”

• Instead of living by the Spirit (Galatians 5:16), they act on raw impulse—lust, greed, pride—mirroring Esau who “sold his birthright for a single meal” (Hebrews 12:16).

• The imagery underscores a downward spiral: rejecting God’s revelation leads to sub-human behavior, exactly what Romans 1:24–28 describes.


they will be destroyed by the things they do instinctively

• The very instincts they indulge become the means of judgment—“whatever a man sows, he will reap” (Galatians 6:7–8).

• Three patterns emerge:

– Moral decay brings personal ruin (Proverbs 5:22–23).

– False teaching breeds division and eventual exposure (2 Timothy 3:9).

– Persistent rebellion ends in eternal fire (Jude 1:7).

• God’s justice is precise: “Their destruction is their reward for their wrongdoing” (2 Peter 2:13).

Revelation 21:8 confirms the final outcome: “The cowardly, unbelieving, detestable… will be consigned to the lake that burns with fire and sulfur.”


summary

Jude 1:10 paints a sobering portrait: self-appointed teachers, blind to the truths they deride, driven by base instinct, and ultimately undone by those very impulses. God’s Word assures believers that such arrogance cannot stand; divine justice is certain, and those who cling to Christ, walking by His Spirit, are kept safe while error consumes itself.

How does Jude 1:9 illustrate the concept of spiritual warfare?
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