1 John 2:20-23, 27

And ye have an anointing from the Holy One, and ye know all things. 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. Who is the liar but he that denieth that Jesus is the Christ? This is the antichrist, even he that denieth the Father and the Son. Whosoever denieth the Son, the same hath not the Father: he that confesseth the Son hath the Father also.

And as for you, the anointing which ye received of him abideth in you, and ye need not that any one teach you; but as his anointing teacheth you concerning all things, and is true, and is no lie, and even as it taught you, ye abide in him.