"They have escaped the pollutions of the world through the knowledge of the Lord and Savior Jesus Christ" - what does that sound like to you?
I take that to be you think they were once saved, and that is the purpose of my reply: Take notice of what is written in Jude about judgment on the ungodly:
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.
5 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.
8 Yet in the same way these dreamers defile their bodies, reject authority, and slander glorious beings.
9 But even the archangel Michael, when he disputed with the devil over the body of Moses, did not presume to bring a slanderous charge against him, but said, “The Lord rebuke you!”
10 These men, however, slander what they do not understand, and like irrational animals, they will be destroyed by the things they do instinctively.
11 Woe to them! They have traveled the path of Cain; they have rushed headlong into the error of Balaam; they have perished in Korah’s rebellion.
12These men are hidden reefs in your love feasts, shamelessly feasting with you but shepherding only themselves. They are clouds without water, carried along by the wind; fruitless trees in autumn, twice dead after being uprooted.
13They are wild waves of the sea, foaming up their own shame; wandering stars, for whom blackest darkness has been reserved forever.
14Enoch, the seventh from Adam, also prophesied about them: “Behold, the Lord is coming with myriads of His holy ones
15 to execute judgment on everyone, and to convict all the ungodly of every ungodly act of wickedness and every harsh word spoken against Him by ungodly sinners.” 16 These men are discontented grumblers, following after their own lusts; their mouths spew arrogance; they flatter others for their own advantage. Hebrews 10:19-39 and 2 Peter 3:1-7
But you, beloved, remember what was foretold by the apostles of our Lord Jesus Christ
18 when they said to you, “In the last times there will be scoffers who will follow after their own ungodly desires.”
19These are the ones who cause divisions, who are worldly and devoid of the Spirit.
20 But you, beloved, by building yourselves up in your most holy faith and praying in the Holy Spirit,
21 keep yourselves in the love of God as you await the mercy of our Lord Jesus Christ to bring you eternal life.
22 And indeed, have mercy on those who doubt;
23 save others by snatching them from the fire; and to still others show mercy tempered with fear, hating even the clothing stained by the flesh.
Sorry this is so long, but necessary, the scriptures also teach that one will endure to the end if they are saved, otherwise they were never saved, Matt 24:13 But the one who endures to the end will be saved.
Matt 10:22 and you will be hated by all for my name's sake. But the one who endures to the end will be saved. Heb 3:14 For we have come to share in Christ, if indeed we hold our original confidence firm to the end. Heb 10:39 But we are not of those who shrink back and are destroyed, but of those who have faith and preserve their souls. Rom 2:7 to those who by patience in well-doing seek for glory and honor and immortality, he will give eternal life; Luke 8:15 As for that in the good soil, they are those who, hearing the word, hold it fast in an honest and good heart, and bear fruit with patience. And I will close with Jesus own words to those in John 8 which would be great if you read this whole chapter when you can: 8:31 Then Jesus said to those Jews who believed Him,
“If you abide in My word, you are My disciples indeed. 32 And you shall know the truth, and the truth shall make you free.”
One last jewel: you may already know, but looking at an interlinear text which can be found on internet, it will show the tense of the words as one reads the scriptures and when a verse says the word believe, believes, as he who believes in Me will never perish, it is always in the present tense, saving faith is always present.