No. The fact that there are three persons (TRINITY) in one God is a mystery. We know only through Jesus Christ that God is Trinitarian.
Men cannot deduce the fact that God is a Trinity by means of their own reason. They acknowledge, however, that this mystery is reasonable when they accept God’s REVELATION in Jesus Christ. If God were alone and solitary, he could not love from all eternity. In the light of Jesus we find already in the OLD TESTAMENT (for example, Gen 1:2; 18:2; 2 Sam 23:2), indeed, even in all of creation, traces of God’s Trinitarian Being.
