A Christadelphian Video: The Bible does not teach the doctrine of the Trinity; the word “Trinity” doesn’t appear in it, and there are no explanations of the nature of God in the Bible which are even close to it. Jesus described his Father as “The only true God” (John 17:3) and he tells us that this is the God that he worships (John 4:22). The earliest Christians were Jewish monotheists. They argued about the possibility of joining with Christians who did not follow the Law of Moses, and this controversy is found in the New Testament. There was no controversy about the idea of the Trinity until the third century, and the doctrine was not formulated until the fourth century; it was not fully defined until much later than even this.