treacherous [i.e., betrayers], reckless, conceited, [and] lovers of pleasure rather than lovers of God.

[He must] not be a new convert or else he could become conceited [i.e., over being in a leadership position] and fall into the [same] condemnation incurred by the devil.

True, but they [i.e., the Jews] were [really] broken off because they did not believe [in Christ], and you [Gentiles] remain [in God's favor] because you do believe [in Him]. So, do not become arrogant [about it], but be fearful.

For such men are not serving our Lord Christ but their own [unspiritual] appetites. They are deceiving the minds of innocent people by their smooth talk and flattering words.

For I have often told you before, and am telling you again with tears in my eyes, that many people are living as the enemies of the cross of Christ [i.e., their lives oppose the purpose of Christ's death].

But the widow who devotes herself to unrestrained pleasure is [spiritually] dead, even while still living.

[Solemnly] urge those who are rich in this present world not to be arrogant, nor to place their hope in the uncertainty of [their] wealth, but in God, who generously supplies us with everything to enjoy.

[This fate will come upon] those people especially who corrupt themselves with physical desires and despise being ruled by others. They are daring, self-willed, and are not afraid to speak against glorious beings [i.e., angels],

For certain men have secretly infiltrated [your ranks]; they are men who had been written about long ago that they should be judged [and condemned] for perverting the unearned favor of our God into [a license for] living unrestrained, indecent lives, and who deny [the identity and work of] our only Master and Lord, Jesus Christ.

In the same way, these people have dreams of committing physically corruptive practices; they reject authority over them [i.e., by both God and men], and speak against glorious [i.e., heavenly] beings.

These are people who cause divisions [among God's people]; they follow their natural inclinations [i.e., worldly principles], for they do not have the Holy Spirit [in their lives].

Treasury of Scripture Knowledge

Summary

Traitors, heady, highminded, lovers of pleasures more than lovers of God;

Bible References

Traitors

[This fate will come upon] those people especially who corrupt themselves with physical desires and despise being ruled by others. They are daring, self-willed, and are not afraid to speak against glorious beings [i.e., angels],
In the same way, these people have dreams of committing physically corruptive practices; they reject authority over them [i.e., by both God and men], and speak against glorious [i.e., heavenly] beings.

High-minded

True, but they [i.e., the Jews] were [really] broken off because they did not believe [in Christ], and you [Gentiles] remain [in God's favor] because you do believe [in Him]. So, do not become arrogant [about it], but be fearful.
[Solemnly] urge those who are rich in this present world not to be arrogant, nor to place their hope in the uncertainty of [their] wealth, but in God, who generously supplies us with everything to enjoy.

Lovers of god

For such men are not serving our Lord Christ but their own [unspiritual] appetites. They are deceiving the minds of innocent people by their smooth talk and flattering words.
For I have often told you before, and am telling you again with tears in my eyes, that many people are living as the enemies of the cross of Christ [i.e., their lives oppose the purpose of Christ's death].
But the widow who devotes herself to unrestrained pleasure is [spiritually] dead, even while still living.
They suffer wrong themselves for doing wrong to other people. They consider it [especially] pleasurable to carry on their drunken revellings, [even] during the daytime. They become blots and blemishes [i.e., like spoiled food] in your fellowship meal, as they revel in their deceitful behavior.
For certain men have secretly infiltrated [your ranks]; they are men who had been written about long ago that they should be judged [and condemned] for perverting the unearned favor of our God into [a license for] living unrestrained, indecent lives, and who deny [the identity and work of] our only Master and Lord, Jesus Christ.
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