The doctrine of the Blessed Trinity was all but unknown until Christ unveiled the truth. In the Old Testament times the Jews were surrounded by idolatrous nations. More than once the Jews turned from the worship of the one God.  As a consequence, God, though His prophets hammered away the idea of the oneness of God, the unity of God. He did not complicate things by revealing to pre-Christian man that there are three Persons in God. It remained for Jesus Christ to give us this marvellous insight. Lord, Catholic Quotes, Saints, Inspiration, Catholic Catechism, Catholic Answers, Faith In God, God The Father, Catholic Christian