The Bible emphasizes that there is One God.
“The Lord our God, the Lord is One “(Deut. 6:4).
“The Lord Himself is God; besides Him there is no other” (Deut. 4:3).
“I am the first, and I am the last, apart from me there is no God” (Isa. 44:6).
“I am the Lord, and there is no other; apart from me there is no God” (Isa. 45:5).
“However it is also taught that this One God consists of a plurality of Persons. God is a Plurality of One. This sounds strange but it is what the Bible repeatedly teaches. This is taught in the very Scriptures that emphasize that there is One God. For instance, Deut. 6:4 uses two Hebrew words to emphasize this: “The Lord (Jehovah—singular), our God, (Elohim—plural), is one Lord (Jehovah—singular).
Deut. 4:35 reads: “The Lord (Jehovah—singular), Himself is God (Elohim—plural); there is none other besides Him”.
Isa. 45:5 reads: “I am the Lord (Jehovah—singular), there is no other God (Elohim—plural) besides me”.
If the Bible wanted to teach a single entity within the Godhead the Word “Eloah” would have been used instead of the plural “Elohim”.
Note in Gen. 1:26: “God said; let US make man in OUR image, in OUR likeness”. In the next verse we read: “So God created man in HIS OWN image. The US and OUR in verse 26 become HIS in verse 27. This singular God consists of a plurality of Persons. This singular God in a plurality of Persons in the Godhead also runs all through the New Testament. Note in John 1:1 we have: “In the beginning was the Word (Jesus Christ), and the Word was WITH God (a plurality), and the Word WAS God (singular).
This plurality is consistently revealed as 3 Persons. Gen 1:1 says: “In the beginning God (Elohim—plural) created the heavens and the earth”. Here the plural is used, a plurality of Persons. This is why we are told that the Father created all things: “The Father from whom all things came” (I Cir. 8:6).
The Son created all things: “All things were made trough Him, and without Him nothing was made that was made” (John 1:3).
And the Holy Spirit is the Creator: “The Spirit of God has made me” (Job 33:4).
Likewise Jesus resurrection is attributed to the Father: “This Jesus God has raised up” (Acts 2:32).
To the Son: “Therefore my Father loves me, because I lay down my life that I may take it again” (John 10:17).
And to the Holy Spirit: “But if the Spirit of Him who raised Jesus from the dead dwells in you, He who raised Christ from the dead will also give life to your mortal bodies through His Spirit who dwells in you” (Rom.8: 11).
In John 1:18 we read “No one has ever seen God. But God the One and Only who is at the Father’s side has made Him known”. Here we see that no one has ever seen God in His divine essence, but the Second Person of the trinity has made Him known. He is God’s revealer. Jesus Christ in His earthly life unveiled the Father and made Him known to humanity. This is why He could say in John 14:9: “He that has seen Me has seen the Father”.
In I John 5:20 Jesus is called “The true God and eternal life. In Isa. 9:6 Jesus is called “The Mighty God. And in Acts 5:3 Ananias is said to have lied to the Holy Spirit, in the next verse this is explained as “lying to God.
In I Cor. 3:16 believers are called the “temple of God”. Why? because the Holy Spirit dwells in them.
These three Persons are coeternal and coequal. They are distinct individuals. Each One partakes of the full Divine essence. The One God is also three Persons, and they are always together and always cooperating. They are One in the fullness of deity in which each one lives in and through the others in an inner union eternally rooted in infinite love. At the center of reality is a relationship within the nature of God, relating eternally, perfectly and beautifully.
The inner life of the Triune God is characterized by a self-giving love which revolves around the others. Scripture declares that “God is love” (I John 4:8). This means that it is His very nature to Love. The Persons of the Trinity continuously pour out love to each other and receive love in return.
Baptism is the testimony of our faith and worship and total consecration to the One in whose name we are baptized.
The universe was created by a fellowship of persons who have loved each other from eternity. We were created for a mutually self-giving, other-centered love; Self-centeredness came from the fall and destroys our purpose.
The Scriptures do not explain the Trinity Just as it does not explain God. The existence of God is taken for granted as is His Triune nature. It is simply ingrained in Scripture.
Excerpt from a coming book.