No, we are not Seventh Day Adventists. Our beliefs are akin to the church in the first-century church. That is, our doctrines do not have any post-biblical positions or personalities.

The Church of God (Seventh Day) does not keep the feasts given to Israel under the terms of the old covenant, as they relate to the commands of animal sacrifice and rituals specifically in Jerusalem. These annual ordinances were associated with Israel's deliverance from Egypt as well as their annual barley and wheat harvests. However, we do have congregations around the world who recognise the Christo-centric nature of the appointed times of the Lord purely under the terms of the new covenant. These celebrations are not regarded as a test of fellowship or a requirement for salvation. For example, when the disciples gathered on that Sunday morning on Pentecost, we see no record of the required old covenant rituals. Instead we witness the pouring out of the Holy Spirit on men and women at that appointed time. So what happens under the terms of the new covenant is completely different in nuance and practice from the old covenant ordinances given to ancient Israel.

The Church of God (Seventh Day) does not celebrate Easter or Christmas, as these celebrations originated as pagan, Romanised festivals. The December 25th date was associated with the Roman pagan sun-god of Mithras, and had nothing to do with Jesus’ actual birth, which we believe was sometime in late September or early October. The name "Easter" is derived from the pagan fertility goddess "Ishtarte." Instead, we commemorate the Lord Jesus Christ's death at the annual memorial service of the Lord's Supper.

The Church of God (Seventh Day) believes that the resurrection of the saints occurs when Jesus returns to reign on the earth, and the rest of humanity will be resurrected to a time of judgment after the millennial reign of Christ. According to scripture, the dead are asleep in their graves until they are resurrected.

The Biblical call to rest on the Saturday Sabbath has never been diminished or attributed to another day of the week; the change to Sunday worship happened hundreds of years after the Biblical record. Jesus said that "the Sabbath was made for man [not just Hebrews]." Enjoined in the Ten Commandments, the Sabbath was celebrated and practiced by Jesus and His first century disciples.

Herbert Armstrong was originally ordained as an elder in the 1930s within the Church of God (Seventh Day) USA. However, within a few years, Herbert left to form his own denomination, originally the Radio Church of God, which later was named Worldwide Church of God.