The fundamental moment for a person who wants to receive Orthodox baptism is faith in one God. This faith should imply at least basic concepts about what kind of personal God Orthodox people believe in. Unfortunately, many who come to the sacrament of holy baptism cannot answer this question.
For an Orthodox person, the Bible gives a clear idea of exactly who Christians believe in. The Old and New Testaments imply a narrative of the old and new covenants between man and God. In the New Testament, the believer reveals the truth about who is in the full sense of God.
For Orthodox people, God is the Holy Trinity - the Father, the Son, and the Holy Spirit. In Orthodox theology, the Trinity is called consubstantial and inseparable. What does this mean?
Orthodox Christians have faith in the one Trinity God in Persons. So, the Father is the first Person of the Holy Trinity, the Son is the second Person of the Trinity and the Holy Spirit is the third Person of the Holy Trinity. Otherwise, Persons are called hypostases, so you can come across the naming of the Christian God, which consists in the term tripartite. According to the teachings of the Christian Orthodox Church, all three Persons have divine dignity and equality in divine greatness among themselves.
God the Father revealed himself to the world in the Old Testament. God the Son incarnated on earth by accepting a human body. In modern times, no one doubts the historical person of Jesus Christ. For Orthodox people, Christ is in the full sense of God, who has granted salvation to humanity. It is about the coming into the world of Christ the Savior that the gospels narrate. The Holy Spirit revealed himself to the world on the fiftieth day after the resurrection of Jesus Christ. Then the Holy Spirit descended upon the apostles of Christ, imparting divine grace to them. It was from the moment of the Descent of the Holy Spirit on the apostles that the public preaching of Christianity began. Therefore, the feast of Pentecost is called the birthday of the Church.
The mystery of the dogma of the Holy Trinity is hidden for a complete understanding by a person to the extent of the limitations of human thinking. Man cannot fully comprehend the essence of God. Orthodox remains to believe that God is one, but threefold in Persons. That is, there are no three different gods, but one and only three-apostate Lord.
It should be noted that for the Orthodox person, the Holy Trinity is not just God who does not participate in people's lives. Thus, Christians perceive God as a loving Father. St. John the Evangelist in his gospel says directly that God is love. It is this perception of the deity that formed the basis of the worldview of the Orthodox person. God is not just a universal magistrate, He is not just the Creator of the visible and invisible world. The Lord for Orthodox people is a loving Father who is ready to help all righteous needs of those who turn to Him with faith.
