1 John 2:18-21

18 Little youths, it is the last hour; and even as ye heard that the antichrist doth come, even now antichrists have become many -- whence we know that it is the last hour;

19 out of us they went forth, but they were not of us, for if they had been of us, they would have remained with us; but -- that they might be manifested that they are not all of us.

20 And ye have an anointing from the Holy One, and have known all things;

21 I did not write to you because ye have not known the truth, but because ye have known it, and because no lie is of the truth.