There is only one God
St. Irenaeus is considered to be the among the greatest
Christian theologians. He was concerned with Christ as the fulfilment of Old
Testament prophecies. He contrasted Christianity with Judaism, in that the task
of Judaism was to preserve the knowledge of the one God by establishing a solid
national base for it among a single people, but the task of Christianity was to
set out from that base to preach the Truth to all nations.
