Unknown artist, 14th C.: Consecration of St. Hilary. Arian heretics forced him into exile for four years, though he continued to write and administer his see. An epic battle over the doctrine of the Trinity arose in the 3rd Century and lasted for hundreds of years; it rests on a single sentence in the Gospel of John where Jesus says, “The Father is greater than I.” Arius, a priest from Alexandria, took that to mean that Jesus was created and subordinate to the Father, not his equal – though the first words in John’s Gospel assert, “In the beginning was the Word, and the Word was with God, and the Word was God.” Heresy isn’t just false doctrine; often it over-emphasizes one truth to exclude all competing truths. St. Hilary was one of the foremost thinkers to combat it; he stood for Christianity, not Yahwism, and eventually the Church reached consensus on the divine equality of Father, Son and Holy Spirit. (Wikipedia)