No, not all Christian denominations believe in the Trinity. Some denominations, such as Unitarian Universalists and Jehovah's Witnesses, do not adhere to the doctrine of the Trinity.
Unitarians, Jehovah Witnesses, and Mormons don't believe in the Trinity.
The majority of Christian denominations, including Catholic, Orthodox, and most Protestant churches, believe in the Trinity, which is the belief in one God existing in three persons: the Father, the Son (Jesus Christ), and the Holy Spirit.
If by Eucharist you mean the elements distributed by the priest at mass, then no, not all denominations believe it relieves sins.
All of them
If you believe in the Trinity, then there is no second person for God is all three.
In Judaism, no Jews believe this.
uummm... we're not a cult... at all... and we aren't ANTI trinity we just don't believe in the trinity
"Trinity" is basically a Christian idea - or more precisely, an idea of some Christian denominations.
Unitarian. The Jehovah's Witnesses do not believe in the Trinity either. Muslims and Jews do not believe in the Trinity.
Pentecostals do not believe in the Economic Trinity.
Biblical Unitarians believe in the oneness of God and the humanity of Jesus, rejecting the traditional Christian doctrine of the Trinity. They emphasize the importance of following the teachings of Jesus as found in the Bible. This differs from other Christian denominations that adhere to the doctrine of the Trinity, which teaches that God exists as three persons in one essence.