1 John 2:21

19 They went out from us, but they did not belong to us. For if they had belonged to us, they would have remained with us. But their departure made it clear that none of them belonged to us.

20 You, however, have an anointing from the Holy One, and all of you know the truth.

I have not written to you because you lack knowledge of the truth, but because you have it, and because no lie comes from the truth.

22 Who is the liar, if it is not the one who denies that Jesus is the Christ? This is the antichrist, who denies the Father and the Son.

23 Whoever denies the Son does not have the Father, but whoever confesses the Son has the Father as well.

Do read the surrounding verses too, because the context often says more than a single verse.

Compare

BSB
I have not written to you because you lack knowledge of the truth, but because you have it, and because no lie comes from the truth.
KJV
I have not written unto you because ye know not the truth, but because ye know it, and that no lie is of the truth.
WEB
I have not written to you because you don’t know the truth, but because you know it, and because no lie is of the truth.
ASV
I have not written unto you because ye know not the truth, but because ye know it, and because no lie is of the truth.
DARBY
I have not written to you because ye do not know the truth, but because ye know it, and that no lie is of the truth.
BLB
I did not write to you⁺ because you⁺ do not know the truth, but because you⁺ know it, and because any lie is not of the truth.
ÅB
Jeg skriver ikke til dere fordi dere ikke kjenner sannheten, men fordi dere kjenner den og vet at ingen løgn er av sannheten.
OTB
Jeg har ikke skrevet til dere fordi dere ikke kjenner sannheten, men fordi dere kjenner den, og fordi ingen løgn kommer fra sannheten.
B1930
Jeg skriver ikke til eder fordi I ikke kjenner sannheten, men fordi I kjenner den og vet at ingen løgn er av sannheten.

Study notes (Tyndale)

Original text and word study

Cross references

  • 2 Peter 1:12

    Therefore I will always remind you of these things, even though you know them and are established in the truth you now have.

    Read in context
  • Jude 1:5

    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.

    Read in context
  • Proverbs 1:5

    let the wise listen and gain instruction, and the discerning acquire wise counsel

    Read in context
  • Proverbs 9:8–9

    Do not rebuke a mocker, or he will hate you; rebuke a wise man, and he will love you.

    Read in context
  • Romans 15:14–15

    I myself am convinced, my brothers, that you yourselves are full of goodness, brimming with knowledge, and able to instruct one another.

    Read in context