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.
John again used a three-fold structure at the beginning of this section of the text. He described three signs or marks: of the end (1 John 2:18-19), of the believer (1 John 2:20-23), and of living in the light (1 John 2:24-25). 1 John 2:26-27 recapitulate and develop the revelation in 1 John 2:18-25.