And I have other sheep which are not of this field: I will be their guide in the same way, and they will give ear to my voice, so there will be one flock and one keeper.
For the time will come when they will not take the true teaching; but, moved by their desires, they will get for themselves a great number of teachers for the pleasure of hearing them;
They went out from us but they were not of us; if they had been of us they would still be with us: but they went out from us so that it might be made clear that they were not of us.
I have not sent you this letter because you have no knowledge of what is true, but because you have knowledge, and because that which is false has nothing in common with that which is true.
I have knowledge of your doings, and of your hard work and long waiting, and that you will not put up with evil men, and have put to the test those who say they are Apostles and are not, and have seen that they are false;