Closed Communion:
"But let none eat or drink of your Eucharist except those who have been baptised in the Lord's Name. For concerning this also did the Lord say, "Give not that which is holy to the dogs.'"
Tithing/"Full-Time" Ministers:
"But every true prophet who wants to live among you is worthy of his support. So also a true teacher is himself worthy, as the workman, of his support. Every first-fruit, therefore, of the products of wine-press and threshing-floor, of oxen and of sheep, you shall take and give to the prophets, for they are your high priests. But if you have no prophet, give it to the poor. If you make a batch of dough, take the first-fruit and give according to the commandment. So also when you open a jar of wine or of oil, take the first-fruit and give it to the prophets; and of money (silver) and clothing and every possession, take the first-fruit, as it may seem good to you, and give according to the commandment."
An eschatology that sounds remarkably like Futurism:
"Watch for your life's sake. Let not your lamps be quenched, nor your loins unloosed; but be ready, for you know not the hour in which our Lord will come. But come together often, seeking the things which are befitting to your souls: for the whole time of your faith will not profit you, if you are not made perfect in the last time. 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 increases, 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. Then shall the creation of men come into the fire of trial, and many shall be made to stumble and shall perish; but those who endure in their faith shall be saved from under the curse itself. And then shall appear the signs of the truth: first, the sign of an outspreading in heaven, then the sign of the sound of the trumpet. And third, the resurrection of the dead -- yet not of all, but as it is said: "The Lord shall come and all His saints with Him." Then shall the world see the Lord coming upon the clouds of heaven."
Granted, we don't know to what extent the Didache was normative, and it's not authoritative scripture. On the other hand, it is generally regarded to be contemporaneous with the New Testament scriptures, possibly even predating the Gospels, and it is regarded as orthodox. A variety of extant manuscripts containing portions of the Didache have been found, which lend creedence to it's authenticity.
I'm curious if any of you (particularly those holding Preterist and/or anti-Tithing views) have wrestled these through and, if so, what were your conclusions?