From The Didache
, chapter 12.
1 Let every one that cometh in the name of the Lord be received, but afterwards ye shall examine him and know his character, for ye have knowledge both of good and evil.
2 If the person who cometh be a wayfarer, assist him so far as ye are able; but he will not remain with you more than two or three days, unless there be a necessity.
3 But if he wish to settle with you, being a craftsman, let him work, and so eat;
4 but if he know not any craft, provide ye according to you own discretion, that a Christian may not live idle among you;
5 but if he be not willing to do so, he is a trafficker in Christ. From such keep aloof.