One of the most common objections to the concept of the Trinity is the argument that the idea is invalid because the word is not found in the Bible. This argument confuses two separate realities.
It is true that the English word Trinity [or any Greek or Hebrew equivalent] does not occur in the text of the Bible. But the presence or absence of the word does not automatically require that the concept of the tri-unity of God be rejected. There are other words we used to describe the revelation of God in scripture that are useful, but do not occur in the text of the Bible.
For example, we describe God as omnipotent, or all powerful. The word omnipotent is not found in the biblical manuscripts. But the concept is mentioned many times. For example, Daniel 4:35 asserts, “All the peoples of the earth are regarded as nothing. He does as he pleases with the powers of heaven and the peoples of the earth. No one can hold back his hand or say to him: ‘What have you done?’” We do not find the word omniscient in the Bible either. But the Bible depicts God as all knowing and all wise (See Isaiah 28:29.)
So the issue is not about the presence of the actual word Trinity in the text of the Bible. The issue is whether or not the concept of God as a tri-unity is taught in scripture.
The concept of the Trinity is an inescapable conclusion of two realities. The first is that God is one. Deuteronomy 6:4 states, “Hear, O Israel: The LORD our God, the LORD is one.” This is part of the prayer that many Jews recite daily.
The second reality is that the Bible depicts the Father, Son, and Spirit as God. Jesus often asserted his divinity, claiming for example that those who had seen him had seen the father. (See John 14:9.) He claimed that he and the Father were one. (See John 10:30.) The Jews understood his claim and attempted to stone him for claiming to be God. (See John 10:33.) These are but a few of the verses that point to Christ’s deity. The Spirit is also identified as God. Peter equates lying to the Spirit with lying to God himself in Acts 5:3-4.
Christians have put these two realities together and described God as being one in essence, but three in persons. The language may be inadequate, but it does give some clarity to the nature of God. This is not a violation of the teaching of Deuteronomy 6:4. The Hebrew word for one in that text is also used in Genesis 2:24, where the Bible describes Adam and Eve and becoming “one” flesh. In that text there is a new unity comprised of two individuals. The Trinity involves a unity comprised of three persons.
Some would argue mathematically that 1 plus 1 plus 1 cannot equal one. That argument is flawed on two counts. First, it reduces an infinite God to the constraints of a mathematical formula. Second, if one were to use math, there is another way to turn the argument around. Since God is infinite, one could ask, “Is not infinity plus infinity plus infinity equal to infinity?”
Some contend that we cannot understand the Trinity, therefore it is illogical. But that argument rests on the presence that anything we cannot fully comprehend cannot be real. There are realities even in science that we don’t fully understand. Think of magnetism or electricity. Consider the subatomic balance of particles in the nucleus of an atom or the presence of a abstract thought in humans. We may have adequate understanding of some of these things. And that is sufficient for us to speak and write about them. Through God’s self-revelation in scripture, we also have adequate knowledge of him. The unanswered questions in theology or science do not prove the non-existence of the realities about which we speak.
