A simple form of worship which has stood the test of time

"On Sunday all of us gather from far and near. We read from the scriptures and from the writings of the apostles for as long as possible. Then the one presiding at the service speaks to us, urging everyone to live up to what we have heard in the readings. Then we all stand up together and pray. At the conclusion of our prayers, we greet one another with a sign of peace. Then bread and wine mixed with some water are brought forward. The one presiding offers a long prayer giving thanks. Everyone loudly responding “Amen” concludes this. The eucharist is distributed, and everyone present receives communion. Then deacons take communion to those who are absent.

Those who can afford to contribute financially decide how much to give, and the money is used for orphans, widows, those in distress, the sick, those in prison, or away from home, and all those in need."

For the source of this form of worship and thus some sense if its antiquity, go to Bosco Peter's post on it.