Didache 13

1But every true prophet who is willing to dwell among you is worthy of his meat, likewise a true teacher is himself worthy of his meat, even as is a labourer. Thou shalt, therefore, take the first-fruits of every produce of the wine-press and threshing-floor, of oxen and sheep, and shalt give it to the prophets, for they are your chief priests; but if ye have not a prophet, give it unto the poor. If thou makest a feast, take and give the first-fruits according to the commandment; in like manner when thou openest a jar of wine or of oil, take the first-fruits and give it to the prophets; take also the first-fruits of money, of clothes, and of every possession, as it shall seem good unto thee, and give it according to the commandment.