20 And we know that the Son of God is come, and hath given us an understanding, that we may know him that is true; and we are in him that is true, even in his Son Jesus Christ. This is the true God, and eternal life.
21 Little children, keep yourselves from idols. Amen.
2 John 1 Intro: Walk in love -- The antichrist -- The doctrine of Christ.
1 The elder unto the elect lady and her children, whom I love in the truth; and not I only, but also all they that have known the truth;
2 For the truth's sake, which dwelleth in us, and shall be with us forever.
3 Grace be with you, mercy, and peace, from God the Father, and from the Lord Jesus Christ, the Son of the Father, in truth and love.
4 I rejoiced greatly that I found of thy children walking in truth, as we have received a commandment from the Father.
5 And now I beseech thee, lady, not as though I wrote a new commandment unto thee, but that which we had from the beginning, that we love one another.
6 And this is love, that we walk after his commandments. This is the commandment, That, as ye have heard from the beginning, ye should walk in it.
7 For many deceivers are entered into the world, who confess not that Jesus Christ is come in the flesh. This is a deceiver and an antichrist.
8 Look to yourselves, that we lose not those things which we have wrought, but that we receive a full reward.