As for you, the anointing which you received from him remains in you, and you don't need for anyone to teach you. But as his anointing teaches you concerning all things, and is true, and is no lie, and even as it taught you, you will remain in him.
and is truth, and is no lie: This phrase refers to the "anointing"; it is true and is no lie. All of this teaching is true because it comes from the anointment of God, His word. God cannot lie (Titus 1:2; Hebrews 6:18). His word is truth (John 17:17). The words that come from God’s word are always characterized by truth, an assurance the Gnostics could not claim. Like the Gentiles of old, they had "changed the truth of God into a lie" (Romans 1:25). The big "lie" told by these "liars" is the falsehood that Jesus is not the Christ Who came in the flesh.