64 Listen to the teaching of the Apostle and see in it a faith instructed not by the understanding of the flesh but by the gift of the Spirit. The Greeks seek after wisdom, he says, and the Jews ask for a sign; but we preach Christ crucified, to the Jews a stumbling block, and unto Gentiles foolishness; but unto them that are called, both Jews and Greeks, Christ Jesus, the power of God, God. Is Christ divided here so that Jesus the crucified is one, and Christ, the power and wisdom of God, another?
This is to the Jews a stumbling-block and unto the Gentiles foolishness; but to us Christ Jesus is the power of God, and the wisdom of God: wisdom, however, not known of the world, nor understood by a secular philosophy. Hear the same blessed Apostle when he declares that it has not been understood, We speak the wisdom of God, which has been hidden in a mystery, which God foreordained before the world for our glory: which none of the rulers of this world has known: for had they known it, they would not have crucified the Lord of Glory. Does not the Apostle know that this wisdom of God is hidden in a mystery, and cannot be known of the rulers of this world?
Does he divide Christ into a Lord of Glory and a crucified Jesus? Nay, rather, he contradicts this most foolish and impious idea with the words, For I determined to know nothing among you, save Jesus Christ, and Him crucified.
Source: On the Trinity (New Advent)