Jude 1:5

3 Beloved, although I made every effort to write to you about the salvation we share, I felt it necessary to write and urge you to contend earnestly for the faith entrusted once for all to the saints.

4 For certain men have crept in among you unnoticed—ungodly ones who were designated long ago for condemnation. They turn the grace of our God into a license for immorality, and they deny our only Master and Lord, Jesus Christ.

Although you are fully aware of this, I want to remind you that after Jesus had delivered His people out of the land of Egypt, He destroyed those who did not believe.

6 And the angels who did not stay within their own domain but abandoned their proper dwelling—these He has kept in eternal chains under darkness, bound for judgment on that great day.

7 In like manner, Sodom and Gomorrah and the cities around them, who indulged in sexual immorality and pursued strange flesh, are on display as an example of those who sustain the punishment of eternal fire.

Here the Bible tells a story about someone else. Ask yourself what it can say to us today. Do read the surrounding verses too, because the context often says more than a single verse.

Compare

BSB
Although you are fully aware of this, I want to remind you that after Jesus had delivered His people out of the land of Egypt, He destroyed those who did not believe.
KJV
I will therefore put you in remembrance, though ye once knew this, how that the Lord, having saved the people out of the land of Egypt, afterward destroyed them that believed not.
WEB
Now I desire to remind you, though you already know this, that the Lord, having saved a people out of the land of Egypt, afterward destroyed those who didn’t believe.
ASV
Now I desire to put you in remembrance, though ye know all things once for all, that the Lord, having saved a people out of the land of Egypt, afterward destroyed them that believed not.
DARBY
But I would put you in remembrance, you who once knew all things, that the Lord, having saved a people out of [the] land of Egypt, in the second place destroyed those who had not believed.
BLB
Now I want to remind you⁺—you⁺ knowing all things once for all—that Jesus, having saved a people out of the land of Egypt, secondly destroyed those not having believed.
ÅB
Men da dere nå engang vet alt, vil jeg minne dere om at Herren, etter at han hadde frelst folket ut av Egypt, siden ødela dem som ikke trodde,
OTB
Nå ønsker jeg å minne dere, selv om dere vet alt en gang for alle, at Herren, etter å ha frelst et folk ut av Egyptens land, senere ødela dem som ikke trodde.
B1930
Men da I nu engang vet alt, vil jeg minne eder om at Herren, efterat han hadde frelst folket ut av Egyptens land, siden ødela dem som ikke trodde,

Study notes (Tyndale)

Original text and word study

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