This post is part of a series on Life's Difficult Questions, designed to provide you with concise and scripturally-based answers to difficult questions you are likely to encounter.
Is there only one God? People have asked this question throughout the ages. What does the Bible say? Psalm 19:1 says,
“The heavens declare the glory of God; and the firmament sheweth his handywork.”
In other words, when you look at creation, it is obvious that there is a Creator. But, as the Westminster Shorter Catechism puts it,
“Are there more gods than one?” Their answer is, “There is but One only, the living and true God.”
The Bible is God’s Word to us and, therefore, it is authoritative. So when it comes to doctrine, we can look to it for answers to questions like this. So, is there only one God? What does the Bible really say?
Monotheism in the Old Testament
Here are just a few verses from the Old Testament that give a resounding “Yes!” to the question:
Deuteronomy 4:35, 39 — Unto thee it was shewed, that thou mightest know that the LORD he is God; there is none else beside him. (39) Know therefore this day, and consider it in thine heart, that the LORD he is God in heaven above, and upon the earth beneath: there is none else.
2 Samuel 7:22 — Wherefore thou art great, O LORD God; for there is none like thee, neither is there any God beside thee, according to all that we have heard with our ears.
Here we see that Moses (the author of Deuteronomy) and the writer of 2 Samuel both attest that there is only one God. Moses even clarifies that there is no other god in heaven or on earth.
What about the New Testament?
The New Testament also confirms many times that there is only one God:
Ephesians 4:4-6 —"There is one body, and one Spirit, even as ye are called in one hope of your calling; one Lord, one faith, one baptism, one God and Father of all, who is above all, and through all, and in you all."
1 Timothy 2:5 — "For there is one God, and one mediator between God and men, the man Christ Jesus."
The Book of James shows that even the demons (devils) know there is only one God in the universe:
James 2:19 — "Thou believest that there is one God; thou doest well: the devils also believe, and tremble."
What about Other Religions?
What about the gods of other religions? There are so many other religions that claim to possess the truth. But, the Bible is clear that there are no other gods besides Him. All other "gods" are idols created by humans:
Psalm 135:15-17 —The idols of the heathen are silver and gold, the work of men's hands. They have mouths, but they speak not; eyes have they, but they see not; they have ears, but they hear not; neither is there any breath in their mouths.
Psalm 96:5 — "For all the gods of the nations are idols: but the LORD made the heavens."
1 Corinthians 10:19-20 — "What say I then? That the idol is any thing, or that which is offered in sacrifice to idols is any thing? But I say, that the things which the Gentiles sacrifice, they sacrifice to devils, and not to God: and I would not that ye should have fellowship with devils."
If we believe in Scripture, we cannot accept other religions' teachings about God. For instance, Mormons claim that the god who created our universe is just one god among many. They also claim that He was not always a god but became a god because of good works.
The prophet Isaiah refutes this thought process when he says,
“Ye are my witnesses, saith the LORD, and my servant whom I have chosen: that ye may know and believe me, and understand that I am he: before me there was no God formed, neither shall there be after me" (Isaiah 43:10).
What about the Trinity?
We, as Christians, believe that there is only one true and living God. However, we also believe that his one God eternally exists in three persons—Father, Son, and Holy Spirit.
All three persons are completely God, all equal in nature, possessing all the divine attributes. While each person of the Holy Trinity is fully God, they each have different roles.
The Bible testifies to the deity of each person of the Trinity. It is clear that God is not one person who manifests Himself in three different ways, but is one God in three persons.
Here are a few passages that attribute deity to Jesus (God the Son) and God the Holy Spirit:
1 Corinthians 8:6 — "But to us there is but one God, the Father, of whom are all things, and we in him; and one Lord Jesus Christ, by whom are all things, and we by him."
Philippians 2:5-8 — Let this mind be in you, which was also in Christ Jesus: Who, being in the form of God, thought it not robbery to be equal with God: but made himself of no reputation, and took upon him the form of a servant, and was made in the likeness of men: and being found in fashion as a man, he humbled himself, and became obedient unto death, even the death of the cross.
Hebrews 9:14 — "How much more shall the blood of Christ, who through the eternal Spirit offered himself without spot to God, purge your conscience from dead works to serve the living God?"
1 Corinthians 2:10-11 — But God hath revealed them unto us by his Spirit: for the Spirit searcheth all things, yea, the deep things of God. For what man knoweth the things of a man, save the spirit of man which is in him? Even so the things of God knoweth no man, but the Spirit of God.
It is important for us to have a correct understanding of who God is so that we might worship Him rightly. By studying the Scriptures, we can understand what God has revealed to us about Himself. This one true, living and Holy God made a way to reconcile sinful man to Himself through the cross of Jesus Christ.
As Christians, we can rejoice in knowing the same God who created the universe, also loved us and gave His Son as a propitiation (satisfaction of God’s wrath) for our sins (1 John 4:10). We can be thankful that each member of the Trinity played a role in bringing us to Himself. Praise the Lord!
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