“This is my beloved Son.” Every eye was fixed on Jesus. The voice from the heavens spoke. This is My Son.
Every once in a while, I think it pays to review the basic doctrine of the Blessed Trinity. The Catholic doctrine of the Trinity comes directly from the life of the Christ. To believe in Jesus is to believe in the Catholic doctrine of the Trinity. All ‘mainstream’ Christians share these same dogmas, which go back to the Ecumenical Council of… Nicaea!
Okay. Point one: It makes no sense to say that there are multiple gods, or that there is no God. God, the genius and the power behind and above and in everything, the artisan of all things: there can only be one, and there must be one. If there were more than one, then none of them would be God. And if there were less than One, then we have no rational explanation for the existence of, the order of, the goodness of, and the beauty of all the things we experience.
God is the one and only being Who always has been. God’s infinitely powerful existence gives existence to all other existing things. One Creator, one Lord, one absolute, ultimate good and beautiful Truth with a capital T.
So: the religious teachings of the world can be divided into doctrines of God that make sense and doctrines that don’t. The world is divided into Jews and Gentiles, into those who recognize the one true God as the most important fact of life, and those who don’t. We are Jews.
St. Thomas Aquinas gave an excellent Pentecost homily. Click 
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