The Holy Trinity is a concept the Church prefers to say was always part of Christian doctrine. However, the earliest known proponent of the Holy Trinity was Tertullian, a Latin theologian who wrote in the early third century.
The new concept gradually gained adherents throughout the third century but also faced opposition, particularly from Arius, a popular Libyan priest at the beginning of the fourth century. The Trinity was adopted as Christian doctrine at the Council of Nicaea in 325, but the Church remained divided until Emperor Theodosius made belief in the Trinity a requirement for all Christians, around 380 CE.
The Holy Trinity supposedly has scriptural support in the 'Johannine Comma', 1 John 5:7-8 ("For there are three that bear record in heaven, the Father, the Word, and the Holy Ghost: and these three are one."), but that passage was never in the early Greek manuscripts. It appeared in the Latin translation of the fifth century, after the Trinity doctrine had been accepted by the Council of Nicaea and long after the time of Tertullian.
What IS the christian concept of a holy trinity: no christian understands it!
Jesus is part of the the holy trinity because God the Father, Jesus Christ and the Holy Spirit are one. Hope I answered your question correctly.
Before Tertullian expounded the concept of Trinity at the beginning of the third century, there was beleif in God the Father, Jesus his Son, and in the Holy Spirit.
St. Patrick used the concept of the shamrock, a three-leafed plant, to teach the Holy Trinity - the idea that God is three persons in one: the Father, the Son, and the Holy Spirit.
The Bible verse that mentions the Father, Son, and Holy Spirit in relation to the concept of the Holy Trinity is Matthew 28:19, which says, "Go therefore and make disciples of all nations, baptizing them in the name of the Father and of the Son and of the Holy Spirit."
The word "trinity" is not found in the Bible, only its concept (ie., Father, Son, Holy Spirit).
Christianity is the main religion that believes in the concept of the Trinity, which includes the Father, the Son (Jesus Christ), and the Holy Spirit as three distinct persons in one Godhead.
The concept of the Holy Trinity in Christianity explains the belief that God is three persons in one divine being. This means that God is Father, Son (Jesus Christ), and Holy Spirit, all existing as one Godhead. Each person of the Trinity is distinct, yet they are all united in one essence of God.
The holy trinity are (not was) God, Jesus the Christ, and the Holy Spirit.
A shamrock was used to illustrate the concept of the Holy Trinity.
The Holy Trinity is located everywhere.
The concept of the Holy Trinity arose in the third century of Christianity and was formally adopted by the Council of Nicaea in the fourth century, after spirited argument. The Bible never mentions the Holy Trinity, and therefore never says that the Holy Spirit is the third person. A passage known as the "Johannine Comma" (1 John 5:7) does refer indirectly to the concept of the Trinity, but was never in the early Greek manuscripts, only appearing in the Latin translation of the fifth century, after the Trinity doctrine had been accepted by the Council of Nicaea.