1 John 2:19-27 ASV

19 They went out from us, but they were not of us; for if they had been of us, they would have continued with us: but [they went out], that they might be made manifest that they all are not of us. 20 And ye have an anointing from the Holy One, and ye know all the things. 21 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. 22 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. 23 Whosoever denieth the Son, the same hath not the Father: he that confesseth the Son hath the Father also. 24 As for you, let that abide in you which ye heard from the beginning. If that which ye heard from the beginning abide in you, ye also shall abide in the Son, and in the Father. 25 And this is the promise which he promised us, [even] the life eternal.