Beware of false prophets, which come to you in sheep's clothing, but inwardly they are ravening wolves. Whose mouths must be stopped, who subvert whole houses, teaching things which they ought not, for filthy lucre's sake. Little children, it is the last time: and as ye have heard that antichrist shall come, even now are there many antichrists; whereby we know that it is the last time. They went out from us, but they were not of us; for if they had been of us, they would no doubt have continued with us: but they went out, that they might be made manifest that they were not all of us. Matthew 7:15, Titus 1:11, 1 John 2:18-19