Tell Me More About Your God
HOW DO YOU KNOW FOR SURE THAT "YOUR" GOD IS THE REAL ONE?
Because "my God" has revealed Himself to us. My God is the God of Abraham, Isaac and Jacob; the one same God Who revealed Himself to the Jews. My God is the Trinitarian God, the one God of 3 Divine Persons: Father, Son and Holy Spirit. Of Whom, the 2nd Person of the divine Trinity incarnated into physical human form 2000 years ago in what is today called Israel. His name is Jesus, He is God the 2nd Person. He has revealed Himself to us by miracles and fulfilled prophecy. This one same God is "my" God and "your" God; He is the one same God of "all" of us whether we believe in Him or not.
HOW CAN YOU, OR ANYONE ELSE, KNOW SO MUCH ABOUT GOD?
Our logical reasoning that brings us to the conclusion that God exists (that He is infinite etc) can only take us so far. There is no way we could have known anything more about God (such as His existence as a Trinity, or the doctrine of Original Sin) unless He had revealed these things to us, which He has done. We are now speaking of Divine Revelation, which confirms what we have already concluded about God from logical reasoning, and, takes us beyond what we could discover on our own. So, "our" one true Trinitarian God deserves adoration and love from "all" of His children. Not all of His children are aware of Him. They are members of other religions (or none) that in some way do not possess the fullness of the truth that God has revealed to humanity. Remember, God has only revealed a tiny fraction of His truth to humanity, but that which He has revealed is all that is necessary for our salvation.
* Please note that this text should be read in the context of the whole work and in recognition of the appropriate paragraphs of the Catechism of the Catholic Church highlighted in the index.