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Judah starts his short, urgent, and intense letter by introducing himself: This letter is from Judah, a slave of Messiah Yeshua and a brother of James.
He then tells us who he is writing to: I am writing to all who have been called by God the Father, who loves you and keeps you safe in the care of Messiah Yeshua.
He prays a brief prayer for them: May God give you more and more mercy, peace, and love.
He exposes false teachers and calls the Lord’s people to defend the faith: Dear friends, I had been eagerly planning to write to you about the salvation we all share. But now I find that I must write about something else, urging you to defend the faith that God has entrusted once for all time to his holy people.
That’s where we left off. Today we continue with verse 4: I say this because some ungodly people have wormed their way into your communities, saying that God’s grace allows us to live immoral lives. The condemnation of such people was recorded long ago, for they have denied our only Master and Lord, Messiah Yeshua.
Judah urges the Lord’s people to defend the faith because ungodly people have wormed their way into the communities of Messiah’s people. The image is quiet infiltration, not open opposition. These are not outsiders attacking from a distance. They are insiders who blend in. They adopt the language of the faith, participate in the gatherings, and present themselves fellow believers – but their teaching begins to corrupt the community from within.
This kind of infiltration is more dangerous than persecution from the outside. Open enemies are easy to identify. But false teachers who worm their way in – who don’t begin with obvious error but with something that sounds close to the truth – are much harder to see. False teachers are like termites inside the walls. By the time the damage is visible, much damage has already taken place.
These particular false teachers were promoting what we might call “cheap grace” – the idea that because God is gracious, sexual sin no longer matters. “Don’t worry about what some call sexual immorality.” “Sex is natural and God is gracious, so it’s not a big deal.” “God made you this way.” “He understands that the heart wants what it wants.” “Nobody’s perfect.” “We’re under grace, not law.” “Don’t judge.” “As long as nobody gets hurt.” “God is so gracious. He knows. He understands. He will forgive all.”
The error is turning grace into the freedom to sin, rather than the power to be freed from sin. God’s grace does not only forgive sinners, it transforms sinners. The same grace that pardons us also teaches us to deny ungodliness and live holy lives. True grace produces the fear of God and a desire for holy living. If we have truly experienced God’s grace, we will not want to sin more but to sin less. To turn God’s grace into permission for immorality is not just a small error. It’s it is a wicked distortion. When grace is used to justify sin, it is rebellion dressed in religious language.
Judah adds: The condemnation of such people was recorded long ago, for they have denied our only Master and Lord, Messiah Yeshua. How was the condemnation of such people recorded long ago? It was recorded in the Tenach – the Law, the Prophets, and the Writings. There are many examples of judgment against those who rebelled against God while claiming to be associated with Him: God’s judgments against Israel in the wilderness, against false prophets, against corrupt priests and kings who led God’s people astray. What Judah is confronting is not new. It is part of a recurring pattern in the life of God’s people from ancient times.
Notice how the false teachers denied Yeshua. Their denial is not verbal. They don’t say, “I deny Messiah Yeshua.” They claim allegiance to Him. They call Him Master and Lord. Their denial is practical and theological – they confess Him with their lips while denying Him through their actions and teachings. To call Messiah Yeshua “Master” and “Lord” means He has absolute authority over us. He rules. He owns us. He gives the commands and we answer, “Sir, yes Sir.” To deny Him as Master and Lord is to live as though we are our own masters and lords, even while saying we believe in Him.
True grace leads to submission to Messiah Yeshua as Master and Lord. Cheap grace removes that submission and replaces it with self‑rule: “I am the master of my life and I will live the way I want.”
Because false teachers have entered the community and are distorting grace, Judah does something strategic. He reminds the people of biblical truths they already know – truths that apply directly to these false teachers and those who follow them. So I want to remind you, though you already know these things, that Yeshua first rescued the nation of Israel from Egypt, but later he destroyed those who did not remain faithful. And I remind you of the angels who did not stay within the limits of authority God gave them but left the place where they belonged. God has kept them securely chained in prisons of darkness, waiting for the great day of judgment. And don’t forget Sodom and Gomorrah and their neighboring towns, which were filled with immorality and every kind of sexual perversion. Those cities were destroyed by fire and serve as a warning of the eternal fire of God’s judgment.
Why do we need reminders? Because it is so easy to forget truths, even the most important truths. And when we forget, we do not drift into holiness – we drift into sin. Truth forgotten becomes truth abandoned. So Judah gives three historical examples that together make one powerful point: God consistently judges sin and rebellion, even among those who have experienced His greatest blessings.
The first example: the generation that died in the wilderness: Yeshua first rescued the nation of Israel from Egypt, but later he destroyed those who did not remain faithful.
Different ancient Greek manuscripts have different words in this phrase. Some say “Yeshua,” some say “the Lord,” a few say “God.” Many scholars believe “Yeshua” is the original reading because it is the harder reading and scribes tend to smooth things out, not make them harder. It has strong support in some of the earliest and best manuscripts and fits Judah’s high view of Messiah. If “Yeshua” is the original, Judah is making a profound theological statement: Yeshua is not only revealed in the New Covenant. He was active 1,500 years earlier in the Exodus from Egypt. He is the One who delivered Israel. He shares in the identity and work of God. And this also means the same Yeshua who saves is the One who judges.
Israel was truly delivered – yet many who experienced that deliverance were destroyed in the wilderness. Why? Because they did not remain faithful. They complained. They rebelled. They refused to trust God. They wanted to return to the pleasures of Egypt. Judah’s point here confronts a false assumption: “If we have experienced salvation, we are safe no matter how we live.” But Israel’s story shows us that deliverance does not equal perseverance. Exposure to truth does not equal faithfulness. Those who have experienced salvation can fail because of unbelief. And we do not want that to happen to us.
The second example: the fallen angels: And I remind you of the angels who did not stay within the limits of authority God gave them but left the place where they belonged. God has kept them securely chained in prisons of darkness, waiting for the great day of judgment. Moses informs us that in the days before the Flood, the “sons of God” took human wives, and the Nephilim – which means the “fallen ones” – were the result. An ancient interpretation, held by many early Jewish and Christian teachers, understood these “sons of God” to be fallen angels who crossed boundaries that should never have been crossed and engaged in sexual immorality with human women.
God punished them for that very serious sin and imprisoned them in Tartarus – a place of deep confinement – which aligns with what Luke, John, and Paul call the Abyss. It is not Sheol/Hades, where human souls go after death, and it is not the final Lake of Fire/Gehenna/Hell. It is a “supermax” prison where the worst of the fallen angels are being held until their final and inevitable judgment.
Judah’s point is: the false teachers are doing the same thing these angels did. They are rejecting authority, crossing God‑given boundaries, and redefining what is acceptable. And if powerful heavenly beings who had direct exposure to God’s glory rebelled and were imprisoned in Tartarus – then rebellious and immoral human teachers who distort God’s truth will certainly not escape God’s judgment. If angels are not exempt, neither are we.
The third example: Sodom and Gomorrah: And don’t forget Sodom and Gomorrah and their neighboring towns, which were filled with immorality and every kind of sexual perversion. Those cities were destroyed by fire and serve as a warning of the eternal fire of God’s judgment. Sodom and Gomorrah and their neighboring towns represent extreme sexual immorality – not hidden sin, but an open rejection of God’s design for male and female, and a normalization of sexual perversion – much like what we see in Western civilization today.
God’s response to these cities was decisive: judgment in the form of fire from heaven and total destruction. Judah tells us that this stands as a warning of the eternal fire of God’s judgment. No human being has the authority to redefine sin as something acceptable. But that is exactly what the false teachers who had infiltrated Messiah’s community were doing – perverting grace in order to normalize sin.
When we consider these three examples together, the same pattern emerges: all had privilege. Israel experienced a great redemption. The angels experienced God’s presence. Sodom and Gomorrah had the knowledge of God’s design and moral order sufficient to be held accountable. All crossed boundaries. The generation that came out of Egypt chose unbelief. The angels left the place where they belonged. Sodom and Gomorrah pursued perversion. All experienced judgment. The Exodus generation died in the wilderness. The angels are kept in chains of darkness. Sodom and Gomorrah were destroyed by fire. God does not overlook rebellion simply because of past experience with His grace. Privilege does not guarantee perseverance.
So what are the lessons for us?
We have been given extraordinary privileges. We have the entire Word of God, from Genesis to Revelation. We have a new nature that loves God and desires to please Him. The Spirit of God lives in us. We have a new identity as sons and daughters of God. We are part of a special community of Jews and Gentiles in whom the Spirit lives. We have the most meaningful work to do: bringing the good news of salvation to a lost and dying world. We have the promise of eternal life in the new heavens, the new Earth, and the New Jerusalem.
We have more truth and more revelation than any previous generation. It has been 2,000 years since Messiah came, lived a perfect life, died to atone for our sins, rose from the dead, and ascended to the right hand of the Father. We have seen the message of salvation go from Israel to the ends of the earth. We have seen Israel scattered among the nations and then regathered to our land after nearly 1,900 years. With our own eyes, we can see God at work in human history. We can see the signs of Messiah’s return becoming clearer and stronger.
Great privileges bring great responsibility. Therefore, we must really know the truth. We must be “Bibled‑up.” We must be discerning, because not every teaching that uses spiritual language is sound. We must stay within God’s boundaries. We must be full of faith and the Holy Spirit, love the truth, reject compromise, and love one another.
And let’s not forget: the same Yeshua who delivers His people is also the One who judges sin, faithlessness and rebellion. We don’t want to find ourselves on the wrong side of that judgment. Amen?
Let’s pray:
Heavenly Father, thank You for calling us, loving us, and keeping us safe in Messiah Yeshua. Guard us from false teaching and from twisting Your grace into permission for sin. Help us remember that true grace leads to holiness, submission, and obedience to our Master and Lord. Keep us discerning, faithful, and full of the Holy Spirit. Teach us from the warnings of Israel, the fallen angels, and Sodom and Gomorrah, so that we will not drift into rebellion or unbelief. Strengthen us to defend the faith, live within Your boundaries, proclaim the gospel boldly, and honor You with holy lives until Messiah returns. Amen.