Source: The Trinity — Evidence and Issues, Robert Morey, Chapter 5 pp. 63ff
The first principle of the doctrine of the Trinity is that there is only one, true, eternal, living Being who is God by nature and Maker of heaven and earth. The doctrine of the Trinity is thus a rigorous form of montheism and is absolutely hostile to polytheism in any form.
Trinitarians do not believe that the Father, Son and Holy Spirit are three separate gods. Such an idea is tritheism which is a form of polytheism. Neither do Trinitarians believe that angels or men have ever or will ever be God, or be divine, by nature.
If these Trinitarian beliefs are true then what would we expect to find in the Bible?
When we turn to the Bible, what do we find?
God dogmatically stated on many occasions that He alone is God and that there are no other gods before Him; there are no other gods besides Him now; and there will be no new ones in the future.
(Translation: NASB)
The evidence is so overwhelming that even the demons understand that there is only one God (James 2:19). Yet, such cults as the Mormons teach that there are actually billions of gods and that they themselves will become gods and goddesses.
The God of the Bible is the one "true" God in opposition to the "false" gods of the heathen:
These texts demonstrate that such gods as Baal, Molech, Allah, Siva, Zeus, Ra, Thor, etc., are all false gods. They are not different names for the one true God of Israel. They are false gods because they are no gods at all. They are the creations of man.
The God of the Bible is the one true God because He alone is eternal while all the gods created by man have a beginning and will have an end. They are creatures of time and space while the true God is timeless and spaceless, i.e., infinite in all things.
The eternity of God is taught in the Old and New Testaments in such places as:
The one true God is a living Being and not a lifeless idol of wood, stone or metal. He has "life in Himself" and is thus eternally self-existent (John 5:26). He is called the "living God" many times in the Bible in contrast to the lifeless gods of the heathen:
Deu 5:26; Jos 3:10; 1Sa 17:26,36; 2Ki 19:4,16; Psa 42:2; 84:2; Isa 37:4; Jer 10:10, 23:36; Dan 6:26; Hos 1:10; Mat 16:16; 26:63; Acts 14:15; 2Co 3:3; 6:16; 1Th 1:9; 1Ti 3:15; 4:10; Heb 3:12; 9:14; 10:31; 12:22; Rev 7:2.
It does not really matter if we are talking about the ancient gods of the Middle East or the gods of Hinduism, Buddhism, Islam or the cults and the occult. The authors of the Bible view the gods of the heathen as lifeless as well as false.
The apostle Paul reminded the Galatians of their pagan background:
Gal 4:8 — “However, at that time, when you did not know God, you were slaves to those [gods] things which by nature are no gods.”
Ἀλλὰ τότε μὲν οὐκ εἰδότες θεὸν ἐδουλεύσατε τοῖς φύσει μὴ οὖσιν θεοῖς·
Paul states that all the while they were pagans, they did not know God. Lenski comments:
The condition of the Gentile Christians before their conversion ... is described by the constative participle, "not knowing God." ... It is a simple fact, the Gentiles did not even know the true God; they lived in utter pagan darkness and blindness.
He goes on to say:
All of the paganism found in the world today presents the same picture of the vilest and the most pitiful slavery. The pagan gods are not gods in any true sense of the word.
This is the same point which Paul made to the Romans and the Corinthians (Rom 1:18-25 and 1Co 1:18-24).
Secondly, Paul pointed out that the pagan gods they worshipped were "by nature no gods." The significance of these words is paramount.
When Paul wrote τοῖς φύσει μὴ οὖσιν θεοῖς·, he meant that while there are many different competing concepts of God, the Biblical God is the only true God and all the other gods are by their very nature not God.
The word φύσει is the singular feminine of φύσις which means the essential nature of things in and of themselves. It refers to what things are in their nature as opposed to mere appearance.
If the gods of the heathen are not God by nature, then what is their nature? The famous German commentator Heinrich Meyer comments:
For, in the apostle’s view, the realities which were worshipped by the heathen as gods, were not gods, but demons. In his view, therefore, their nature was not divine but at the same time not of mere mundane matter; it is demonic, a point which must have been well known to the Galatians from his oral instruction.
In 1Co 10:20-21, Paul warned the Corinthians not to participate in pagan sacrifices because:
... the things which the Gentiles sacrifice, they sacrifice to demons, and not to God; and I do not want you to become sharers in demons. You cannot drink the cup of the Lord and the cup of demons; you cannot partake of the table of the Lord and the table of demons.
When Paul warned them not to sit at the table of demons, sipping from the cup of demons, while they enjoyed the fellowship of demons, he was paraphrasing Moses who warned Israel in his day:
They sacrificed to demons who were not God, to gods whom they have not known, new gods who came lately, whom your fathers did not dread. (Deuteronomy 32:17)
Moses did not hesitate to say that the heathen are worshipping demons and not God. While the authors of the Bible viewed pagan idols as nothing but wood, stone and metal, at the same time, they clearly believed that the unseen powers which lay behind these gods were demonic and evil (Deu 32:17; 2Ki 19:18; 1Ch 16:26; 2Ch 13:9; Psa 96:5; Isa 37:19; 40:8-20,25,26; 45:18; Jer 2:11; 5:7; 10:8-10; 16:20; Hab 2:18-20; Acts 19:26; 1Co 8:4-5; 10:20; Gal 4:8).
This means that all the gods of the heathen are demonic in origin and power. It really does not matter if it is Buddha, Allah, Siva, Krishna, the gods of the Mormons, the Jehovah's Witnesses or the New Agers. They are all demon gods and any worship given to them ascends to the demons and not to God.
Many people today naively assume that all gods of all religions are equally "true" because they are all actually false. "God" is whatever you want he, she, it or them to be. Thus, no one should claim to worship the one true God.
The authors of the Bible knew nothing of the sirenic ecumenicism of our day. They believed that there was the only one true God and that all the other religions and their gods were not only demonic, but stupid and foolish. While such language is not politically correct, it is thoroughly Biblical:
Jeremiah 10:7-10,14 (NASB) ... For among all the wise men of the nations and in all their kingdoms, there is none like You. 8 But they are altogether stupid and foolish in their discipline of delusion—their idol is wood! 9 Beaten silver is brought from Tarshish, and gold from Uphaz, the work of a craftsman and of the hands of a goldsmith; violet and purple are their clothing; they are all the work of skilled men. 10 But the LORD is the true God; He is the living God and the everlasting King. ... 14 Every man is stupid, devoid of knowledge; every goldsmith is put to shame by his idols; for his molten images are deceitful, and there is no breath in them.
Obviously, the authors of the Bible would not have won any ecumenical awards! The apostle Paul viewed all other religions as the idolatrous result of man's running from God:
Romans 1:21-23 (NASB) For even though they knew God, they did not honor Him as God or give thanks, but they became futile in their speculations, and their foolish heart was darkened. 22 Professing to be wise, they became fools, 23 and exchanged the glory of the incorruptible God for an image in the form of corruptible man and of birds and four-footed animals and crawling creatures.
This is tough-minded monotheism at its best. Anything less is not biblical monotheism.
One constant theme throughout the Bible is that the God of Israel is the only true God because He is the Creator of all things:
Isaiah 37:16 (NASB) "O LORD of hosts, the God of Israel, who is enthroned above the cherubim, You are the God, You alone, of all the kingdoms of the earth. You have made heaven and earth.
Isaiah 44:24-25 (NASB) Thus says the LORD, your Redeemer, and the one who formed you from the womb, "I, the LORD, am the maker of all things, stretching out the heavens by Myself and spreading out the earth all alone, 25 causing the omens of boasters to fail, making fools out of diviners, causing wise men to draw back and turning their knowledge into foolishness,
Isaiah 45:18 (NASB) For thus says the LORD, who created the heavens (He is the God who formed the earth and made it, He established it and did not create it a waste place, but formed it to be inhabited), "I am the LORD, and there is none else.
Other passages include: Isa 40:26,28; 42:5; 45:12,18; 48:13; 51:13; 64:8; Jer 10:12-16;
The prophet Jeremiah beautifully put everything together when he said:
Jeremiah 10:10-16 (NASB) But the LORD is the true God; He is the living God and the everlasting King. ... 11 Thus you shall say to them, "The gods that did not make the heavens and the earth will perish from the earth and from under the heavens." 12 It is He who made the earth by His power ... 16 ... for the Maker of all is He, and Israel is the tribe of His inheritance; the LORD of hosts is His name.
The importance of God as Maker of heaven and earth cannot be under emphasized. This is why the theory of evolution is the main weapon in the atheist's arsenal. If evolution is true, then the God of the Bible is false. It is either one way or the other.
What must be in order for what is to be what it is? When we opened the Bible we found that it does in fact teach the first principle of the doctrine of the Trinity: There is only one, true, eternal, living Being who is God by nature and Maker of heaven and earth. This concept is exactly what we expect to find in the Bible if the doctrine of the Trinity is true.