The argument presented here misunderstands the biblical use of the term "God" and the doctrine of the Trinity. Scripture does not limit the word "God" to a singular person but instead reveals that the one true God exists as three distinct persons—Father, Son, and Holy Spirit—who share the same divine essence. While the Bible often refers to the Father as "God" in a specific sense, it also clearly applies the term to Jesus (John 1:1; John 20:28; Titus 2:13) and the Holy Spirit (Acts 5:3-4). The assertion that the term "God" must always refer to a singular being or person is an oversimplification that does not account for the full biblical revelation.
The argument here doesn't misunderstand the Biblical use of the word God? The word is used of those who rule. You claim that the Scriptures do not limit the use of the word God to a single person. Then you claim that the word reveals the true God as three distinct persons. I did take notice that you didn't post anything from Scripture showing what you've claimed. There is nothing in Scripture that reveals God as a single entity that exists as three distinct persons. On the contrary, Paul tells us that there is one God, the Father. The job we have as Christians is to reconcile how there is one God when Jesus is also called God at times, in a manner consistent with reason. The manner that has been proposed since the fifth century, that there is this entity called God that consists of three persons is not consistent with reason.
Well, since we have no multipart beings as the Trinity suggests, I would submit that yes, the Bible does apply the word God to a single person.
Furthermore, while it is true that Scripture primarily refers to God in a personal sense, it also speaks of His divine nature (or essence). For example, Colossians 2:9 states that in Christ "the fullness of deity dwells bodily," indicating that divinity is something shared rather than confined to one person alone.
Scripture may refer to the divine nature, however, the word God does not. Perhaps we could understand Colossians 2:9 differently than you've proposed. Instead of a shared divinity we could also understand this as Jesus being indwelled by the Father.
Have I been so long time with you, and yet hast thou not known me, Philip? he that hath seen me hath seen the Father; and how sayest thou then, Shew us the Father? 10 Believest thou not that I am in the Father, and the Father in me? the words that I speak unto you I speak not of myself: but the Father that dwelleth in me, he doeth the works. 11 Believe me that I am in the Father, and the Father in me: or else believe me for the very works’ sake. King James, Jn 14:9–11.
According to Jesus the Father was in Him. If the Father was in Him then yes, the fullness of Deity dwelled in Him bodily. The Deity was the Father, not a shared Deity. How do we know this? We know it from the words of Paul.
5 Think this in yourselves which was also in Christ Jesus,
6 who, existing in the form of God,
did not consider being equal with God something to be grasped,
7 but emptied himself
by* taking the form of a slave,
by* becoming in the likeness of people.
And being found in appearance like a man,
8 he humbled himself
by* becoming obedient to the point of death,
that is, death on a cross.
The Lexham English Bible, Php 2:5–8.
According to Paul Christ was in the form of God, then He emptied Himself of the form of God and took the form of man. Man is not deity as such Christ couldn't be deity. However, with the Father dwelling in Him Deity dwelled in Him.
Additionally, John 1:1 makes a distinction between "the Word" (Jesus) and "God" (the Father) while affirming that the Word is also fully God. The doctrine of the Trinity does not require redefining "God" but rather acknowledges how Scripture reveals Him—as one divine being eternally existing in three persons.
Actually, John said the Word "was" God, not "is" God. John 1:1 is affirming that at some time in the past the word was God. He is not affirming that the Word "is" God.
The doctrine of the Trinity does not acknowledge how Scripture reveals God, because the Scriptures do not reveal God as one being consisting of three persons. Rather that is one illogical conclusion that has come from men trying to understand Scripture.
The claim that calling God an "essence" would also apply to pagan gods misunderstands biblical language. The Bible calls idols "gods" (1 Corinthians 8:5) not to affirm their divinity but to recognize that they are worshiped as such by people, even though they are false. The one true God is unique and incomparable (Isaiah 46:9), and His divine essence is not something shared with idols or demons.
Misunderstands Biblical language? Has Biblical language taken to explaining God? No. That my friend is the logical fallacy of reification. Language doesn't communicate. People use language to communicate. People interpret the language that others use. People interpret the language they read in Scripture. The simple fact is that the definition of the word God must account for all of its uses in Scripture. So, if one claims it's an essence, (even though Scripture does not use the word that way) and one claims it can be used to the True God but not false gods, one is going to have to make a case from Scripture showing that. Good luck with that!
The doctrine of the Trinity remains firmly rooted in Scripture, not in philosophical speculation, and faithfully represents the full biblical teaching on God's nature.
It's not rooted in Scripture. It's not even mentioned in Scripture. However, it is definitely read into Scripture.
It seems to me my friend that you're reading your theology into the Scriptures.