Q3: How many persons are there in God?
ANSWER: There are three persons in the one true and living God: the Father, the Son, and the Holy Spirit. They are the same in substance, equal in power and glory.
The Trinity is one of the more difficult doctrines of the Christian faith. The Bible teaches that God is one, yet He exists in three persons. Not a few theologians have remarked on the paradoxical nature of this statement, and it's not easy to wrap our heads around the complexity of the doctrine. But if we focus only on the intellectual difficulties we confront in our comprehension, we can easily overlook the most significant consequence of the reality of the Trinity.
Put simply, only in Trinitarian faith can we truly say that "God is Love." In the modern world we take this statement for granted. People may not agree on much, particularly when it comes to matters of religion, but they are likely to agree that if there is a God He is a God of love. Yet if you reflect for more than a moment, you will quickly realize that a God whose essence is love is only possible within the complex dance of the Trinity. Absent the Trinity, we are left with either a radical monotheism in which God finds himself alone in the cosmos, or a kind of pagan polytheism in which there many petty and rival deities. In the former, God cannot be love in any essential sense, for there is no means inherent in him to express this love; he requires the creation of another to receive it. In the latter, the gods can be love, but then they can be all kinds of things. Anyone even passingly familiar with classical mythology is well aware of the petty, arrogant, vindictive and self-serving nature of "the gods."
In the Christian revelation of the Trinity, however, we encounter a God Who is in community with Himself. The Father loves the Son who loves the Spirit, who loves the Father. The Trinity reveals to us that love is built into the very "structure" of God. Love is His essence and has been so eternally. The Trinity gives us confidence in the love between Father, Son and Spirit and thus gives us confidence that God loves us. "As the Father has loved me, so I have loved you."
II Corinthians 13:14
The grace of the Lord Jesus Christ and the love of God and the fellowship of the Holy Spirit be with you all.