To those who are elect exiles … according to the foreknowledge of God the Father, in the sanctification of the Spirit, for obedience to Jesus Christ and for sprinkling with his blood.(1 Peter 1:1-2 ESV)
God is a mystery. Even though people are given the image of God so they might have an intimate relationship with Him, people are created and have limitations. God is not created and has no limitations. God has revealed Himself to people in both general and special creation. Peter refers to God as three persons in his opening statement. He speaks about the knowledge of God the Father, the work of the Holy Spirit and the government of God the Son, Jesus Christ. Scripture does not implicitly state God is a Trinity but does imply that God is Three in One.
In the beginning God created all things. We are told that His Spirit hovered over His creation. “The earth was without form and void, and darkness was over the face of the deep. And the Spirit of God was hovering over the face of the waters” (Genesis 1:2 ESV). Later, when God created Man in His image, He states “Let us make man in our image, after our likeness” (Genesis 1:26 ESV). God speaks of Himself in the plural. This is not the royal “we” but the eternal reality of God’s person. After Adam’s rebellion corrupted Man with sin, God gives the reason for removing those created in His image from the Garden and access to the tree of life. “Behold, the man has become like one of us in knowing good and evil” (Genesis 3:22 ESV). Again, when people work together to build the tower of Babel, God watches what they are doing and makes a decision to confuse their speech. “Come, let us go down and there confuse their language, so that they may not understand one another’s speech” (Genesis 11:7 ESV). In all cases God is speaking of Himself in a plural form, suggesting He is more than One person.
Scripture is filled with references to God the Father as the only God. Why is our understanding the Trinity important? Throughout Scripture, God declares He is the only god, that there are no others, and that none should declare any other god.
Assemble yourselves and come; draw near together, you survivors of the nations! They have no knowledge who carry about their wooden idols, and keep on praying to a god that cannot save. Declare and present your case; let them take counsel together! Who told this long ago? Who declared it of old? Was it not I, the LORD? And there is no other god besides me, a righteous God and a Savior; there is none besides me. Turn to me and be saved, all the ends of the earth! For I am God, and there is no other. (Isaiah 45:20-22 ESV)
Many people who declare themselves Christians treat God like He is three or more gods and not a single divine person. They say He is three but do not truly believe what they declare. They will treat God the Father, as the Old Testament god, and Jesus as the New Testament god, ignoring completely the Holy Spirit. They will declare Jesus as the Son of God but not believe He is God, the Son. Jesus is a man and thus cannot be completely God while the Holy Spirit is intangible and thus cannot be God.
God is not like people. People are like God. Perhaps the often-used illustration of water is the best way of comprehending what God’s being. Water has three forms: gas, liquid and solid, depending upon the temperature in which water is found. At high temperatures, water is a gas, but is still water. At normal temperatures, water is a liquid, but still water. At freezing temperatures, water is a solid, but still water. The molecule water remains the same while the density of the molecules varies because of temperature. God does not vary because of any physical or spiritual circumstance. God, the Father, is God, as is God, the Son and God the Holy Spirit. They are all a single God yet have three distinct persons. This is a mystery. Our spiritual selves comprehend God more and more as our relationship with Him grows in intimacy.
God has revealed Himself in the Scripture. All Three Persons of the Trinity are at work throughout Scripture. In the Hebrew Scripture, we see God the Father at work in the history of mankind. In the Gospels of the New Testament we see Jesus Christ, the Son of God, come to live as a man among sinful people to draw all to Himself. In the epistles and history of the Church we see the work of the Holy Spirit drawing those who are God’s toward Him and into eternity. In our lives we see the evidence of the Trinity working in our relationship with Him, drawing us into an eternal intimacy that begins at the moment of our redemption and salvation from sin.