Didache

For in the last days false prophets and corrupters shall be multiplied, and the sheep shall be turned into wolves, and love shall be turned into hate; for when lawlessness increaseth, they shall hate and persecute and betray one another, and then shall appear the world-deceiver as Son of God, and shall do signs and wonders, and the earth shall be delivered into his hands, and he shall do iniquitous things which have never yet come to pass since the beginning.

But let every one that cometh in the name of the Lord be received, and afterward ye shall prove and know him; for ye shall have understanding right and left. If he who cometh is a wayfarer, assist him as far as ye are able; but he shall not remain with you, except for two or three days, if need be. But if he willeth to abide with you, being an artisan, let him work and eat; but if he hath no trade, according to your understanding see to it that, as a Christian, he shall not live with you idle. But if he willeth not to do, he is a Christ-monger. Watch that ye keep aloof from such.