Hi Chaim, Start researching the apostolic fathers, who were disciples of the original apostles and lived during the latter part of the 1st century and early 2nd century. Google Polycarp, Justin Martyr, Clement, Ignatius, etc....who are all saints of the Cathoic church and whose views on Jesus and God do not reflect a Trinitarian viewpoint at all. Polycarp, for example was a direct disciple of John the Evangelist.

What? You think that the Catholic church doesn't believe in the trinity?

Please provide a list of all Church denominations that don't believe in the trinity.

Sincerely,

Doug L.