We use language to describe God. However, Aquinas argues in Summa Theologiae that we can only make analogical statements about God, in which our language is incapable of truly grasping or describing God.
And yet, God chose to reveal Himself partly through human language. Hence we have now Church dogmas like the Trinity. Thus, how is it possible to have True Knowledge expressed in words, and simultaneously sustain Aquinas' position that all out statements about God are always and everywhere analogical? Does it mean that in the end we just cannot grasp what our dogmas mean? This is to say, that Revelation about God's nature is in the end all mystery?