Here your talking about the words of the teachings and traditions of men outside of the bible. There is no scripture that says God's 4th commandment has been abolished and we are now commanded to keep Sunday as a Holy day of rest. Even before your teachings here God's Sabbath was kept as verified in the scriptures since God gave it after creation to Jesus and the Apostles, to after the death and resurrection of Jesus, continued by the Apostles and disciples in the first century AD to the 20th century AD today. Only God's Word is true and we should believe and follow them over the teachings and traditions of men that seek to break the commandments of God. Jesus says if we follow the teachings and traditions of men that break the commandments of God we are not worshiping God in Matthew 15:3-9. So the question we should all be asking ourselves is who do we believe and follow; God or man?
Firstly, the Didascalia, which is sacred scripture, included in the Broad Canon of the Ethiopian church, commends Sunday as a day of rejoicing in the resurrection of the Lord.
Secondly, the traditions of the Ethiopian Orthodox Church, like those of many churches, are from God and not from man. The holiness of the Ethiopian church has been attested by the enormous amount of blood spilled by her martyrs over the centuries, and Ethiopians have been martyred by Muslims, Communists and Italian Fascists. I estimate the ratio of Ethiopian to Adventist martyrs is approximately a thousand to one.
Thirdly, when our Lord uses the phrase “traditions of men,” it is inevitably in response to questions involving the Jewish law and the emerging strictures established around it by the Pharisees. Some SDA policies about the Sabbath, such as the ban on shopping, strike me as a direct violation of our Lord’s declaration that the Sabbath was made for man, and not man for the Sabbath.
Fourthly, nowhere in my post did I say anything about supplanting Saturday with Sunday as the Sabbath. This literally makes no sense, because Saturday is the day of rest, and Sunday is the day of the creation and resurrection. It was on the first day that God created the heavens and Earth, it was on the sixth day He created man in His image, and it was on the seventh He rested. Likewise, it was on the first day that God entered Jerusalem on a colt, it was on the sixth day that He died, showing us through His death what it means to be human, as realized by the ashamed Pontius Pilate when he said “Ecce, homo” meaning “Behold the man.” And it was on the seventh day that God rested in a tomb, before rising again having remade mankind in His image on the eighth day.
Christians should observe the Sabbath to commemorate Christ resting in a tomb, in one of three ways: by attending Holy Communion when it is served on the Sabbath, which is virtually every Saturday in the Coptic and Ethiopian church, by attending Vespers that mark the end of the Sabbath and the beginning of the Day of Resurrection, on Saturday Evening, and most importantly, even if the other two services are impossible to attend, by attending Vespers on the evening of Good Friday, which marks the beginning of Holy Saturday, and by attending any and all services on Holy Saturday.
These three days, Friday, Saturday and Sunday, are the most important in Christianity, for on the sixth day, man was created, and recreated by Christ, the New Adam, on the Cross, on the seventh, God rested and furthermore rested in a tomb following His passion, and on the first and eighth day, the universe was created by the Word of God, and the universe was recreated by the Resurrection of the Word of God.
Sunday is therefore the most important day to attend church, but Friday and Saturday are also extremely important. Wednesday, the day of our Lord’s betrayal, is, like Friday, also important as a fasting day; this was the practice of the first Christians, and the practice of John Wesley.
Ideally, Christians would attend church on Wednesday, Friday, Saturday and Sunday, and on any other Holy Days, but the intrusion of secular pressure precludes this for many. Interestingly, in the Syriac Orthodox Church, the Eucharist can be celebrated only on Wednesday, Friday, Saturday and Sunday, plus any holy days on fixed dates, such as Christmas, the Transfiguration, the Dormition, and the Exaltation of the Holy Cross.
On a side note, on the few occasions I have visited SDA churches, I was dismayed by the lack of a cross. This was in the mid 1990s. Is it still the case that you have no crosses in the nave (or “sanctuary”) of your churches?