The Office of Readings (via Universalis) offers us this stunning account of the trial of St. Justin Martyr and several companions, AD 165. The charge: refusal to worship and offer sacrifices to the Roman gods.
From the Acts of the martyrdom of Saint Justin and his companion saints
The saints were seized and brought before the prefect of Rome, whose name was Rusticus. As they stood before the judgement seat, Rusticus the prefect said to Justin: “Above all, have faith in the gods and obey the emperors”. Justin said: “We cannot be accused or condemned for obeying the commands of our Saviour, Jesus Christ”.
Rusticus said: “What system of teaching do you profess?” Justin said: “I have tried to learn about every system, but I have accepted the true doctrines of the Christians, though these are not approved by those who are held fast by error”. The prefect Rusticus said: “Are those doctrines approved by you, wretch that you are?” Justin said: “Yes, for I follow them with their correct teaching”. The prefect Rusticus said: “What sort of teaching is that?” Justin said: “Worship the God of the Christians. We hold him to be from the beginning the one creator and maker of the whole creation, of things seen and things unseen. We worship also the Lord Jesus Christ, the Son of God. He was foretold by the prophets as the future herald of salvation for the human race and the teacher of distinguished disciples. For myself, since I am a human being, I consider that what I say is insignificant in comparison with his infinite godhead. I acknowledge the existence of a prophetic power, for the one I have just spoken of as the Son of God was the subject of prophecy. I know that the prophets were inspired from above when they spoke of his coming among men”. Rusticus said: “You are a Christian, then?” Justin said: “Yes, I am a Christian”. The prefect said to Justin: “You are called a learned man and think that you know what is true teaching. Listen: if you were scourged and beheaded, are you convinced that you would go up to heaven?” Justin said: “I hope that I shall enter God’s house if I suffer that way. For I know that God’s favour is stored up until the end of the whole world for all who have lived good lives”.
The prefect Rusticus said: “Do you have an idea that you will go up to heaven to receive some suitable rewards?” Justin said: “It is not an idea that I have; it is something I know well and hold to be most certain”.
The prefect Rusticus said: “Now let us come to the point at issue, which is necessary and urgent. Gather round then and with one accord offer sacrifice to the gods”. Justin said: “No one who is right thinking stoops from true worship to false worship”.
The prefect Rusticus said: “If you do not do as you are commanded you will be tortured without mercy”. Justin said: “We hope to suffer torment for the sake of our Lord Jesus Christ, and so be saved. For this will bring us salvation and confidence as we stand before the more terrible and universal judgement-seat of our Lord and Saviour”.
In the same way the other martyrs also said: “Do what you will. We are Christians; we do not offer sacrifice to idols”.
The prefect Rusticus pronounced sentence, saying: “Let those who have refused to sacrifice to the gods and to obey the command of the emperor be scourged and led away to suffer capital punishment according to the ruling of the laws”. Glorifying God, the holy martyrs went out to the accustomed place. They were beheaded, and so fulfilled their witness of martyrdom in confessing their faith in their Saviour.
CHAPTER LXVI -- OF THE EUCHARIST.
And this food is called among us Eukaristia [the Eucharist], of which no one is allowed to partake but the man who believes that the things which we teach are true, and who has been washed with the washing that is for the remission of sins, and unto regeneration, and who is so living as Christ has enjoined. For not as common bread and common drink do we receive these; but in like manner as Jesus Christ our Saviour, having been made flesh by the Word of God, had both flesh and blood for our salvation, so likewise have we been taught that the food which is blessed by the prayer of His word, and from which our blood and flesh by transmutation are nourished, is the flesh and blood of that Jesus who was made flesh. For the apostles, in the memoirs composed by them, which are called Gospels, have thus delivered unto us what was enjoined upon them; that Jesus took bread, and when He had given thanks, said, "This do ye in remembrance of Me, this is My body;" and that, after the same manner, having taken the cup and given thanks, He said, "This is My blood;" and gave it to them alone. Which the wicked devils have imitated in the mysteries of Mithras, commanding the same thing to be done. For, that bread and a cup of water are placed with certain incantations in the mystic rites of one who is being initiated, you either know or can learn.
CHAPTER LXVII -- WEEKLY WORSHIP OF THE CHRIS- TIANS.
And we afterwards continually remind each other of these things. And the wealthy among us help the needy; and we always keep together; and for all things wherewith we are supplied, we bless the Maker of all through His Son Jesus Christ, and through the Holy Ghost. And on the day called Sunday, all who live in cities or in the country gather together to one place, and the memoirs of the apostles or the writings of the prophets are read, as long as time permits; then, when the reader has ceased, the president verbally instructs, and exhorts to the imitation of these good things. Then we all rise together and pray, and, as we before said, when our prayer is ended, bread and wine and water are brought, and the president in like manner offers prayers and thanksgivings, according to his ability, and the people assent, saying Amen; and there is a distribution to each, and a participation of that over which thanks have been given, and to those who are absent a portion is sent by the deacons. And they who are well to do, and willing, give what each thinks fit; and what is collected is deposited with the president, who succours the orphans and widows and those who, through sickness or any other cause, are in want, and those who are in bonds and the strangers sojourning among us, and in a word takes care of all who are in need. But Sunday is the day on which we all hold our common assembly, because it is the first day on which God, having wrought a change in the darkness and matter, made the world; and Jesus Christ our Saviour on the same day rose from the dead. For He was crucified on the day before that of Saturn (Saturday); and on the day after that of Saturn, which is the day of the Sun, having appeared to His apostles and disciples, He taught them these things, which we have submitted to you also for your consideration.
If you're thinking that this sounds like the the Catholic Mass or the Orthodox counterpart, the Divine Liturgy, then you're on the right track. The period for this particular account, prior to AD 150, should at least show that the Catholic and Orthodox Churches are institutionally taking this seriously: "So then, brethren, stand firm and hold to the traditions which you were taught by us, either by word of mouth or by letter." (2 Thessalonians 2:15)