The reason why we attribute Augestine to the invention of the trinity is that he was the first to write a systematic essay on the trinity. The idea of the trinity was already being grappled with before him, with Valetine (saint Valentine), who talked about the "three hypostasis", but never wrote systematically about it. But he was declared a heretic at the First Councel of Nizia because he was a Gnostic. (Talked to professor.)
Hope that helps.
I think it was Saint Augestine? He was one of the early Christian theologians, all though he was called a saint. I think this was around 500 AD? Pretty sure. From Hippo?
I took religions class about 4 years ago, but that's one of the things that stood out to me, because it kind of unlocked the train of thought that most ideas about religion were created outside of the source (in this case being Jesus, Yeshua, whatev). So understanding that a religious view is and can be different from your own interpretation of whatever remaining doctrine is at your disposal (Bible, Gnostic Bibles, Dead Sea Scrolls, etc.) is quite enlightening. Doesn't necessarily take away from the message, just paints a more dynamic picture of the message that was intended. :)
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.