Didache 9

Now concerning the Eucharist, thus give thanks; first, concerning the cup: We thank thee, our Father, for the holy vine of David thy servant, which thou hast made known to us through Jesus thy servant; to thee by the glory forever. And concerning the broken bread: We thank thee, our Father, for the life and the knowledge which thou hast made known to us through Jesus thy servant; to thee by the glory forever. Just as this broken bread was scattered over the hills and having been gathered together became one, so let thy church be gathered together from the ends of the earth into thy kingdom; for thine is the glory and the power through Jesus Christ forever. But let no one eat or drink of your Eucharist, except those baptized into the Lord's name; for in regard to this the Lord hath said: Give not that which is holy to the dogs.