Skip to content ↓

Basic Christianity, Part Four: The Trinity

Before we begin this study, let’s quickly recap what we have already learned in previous studies. We began with discussing reasons why it is good and necessary to have an understanding of Christianity. We then turned our attention to defining what God is. We examined His attributes, that He is infinite, eternal and unchangeable, and his various characteristics.

Today we expand our study of God by expanding our definition of God. We will introduce the concept of the Trinity.

Trinity As A Concept

God is one being, but He is manifested in three persons. Admittedly this is a difficult concept, so we will explain in some detail.

To understand this we must differentiate between beings and persons. Though the words may seem synonymous, there are crucial differences between them. We speak of “human beings.” With such a phrase we acknowledge that there is a difference between humans and beings. It would be correct to say that humans are a classification of beings. Similarly, we can say that dogs are a classification of beings (“canine beings”). Any animal or object has being, which is to say it exists and has attributes. We can always ask “what” questions in regards to beings. What color is the dog? What is the dog’s name?

A difference between animals and humans is that with humans we recognize that there are “personal attributes” that allow us to ask not only “what” but also “who.” Personal attributes indicate that a being is capable of having emotion, will and expression. There are three types of beings that have personal attributes: God, angels and humans. It is only these three that can be considered persons.

So returning to our definition of the Trinity, we see that there is one being of God who is shared by three distinct persons. There is one what shared by three who’s.

The Trinity

We must now turn to a discussion of who comprises the Trinity. The answer is that God has revealed Himself in the persons of the Father, the Son and the Holy Spirit – three persons but one being. Each of the persons is distinct and performs unique functions. Each of the persons fully contains each of the attributes and characteristics we discussed yesterday, so is fully God. Each member of the Trinity is infinite, eternal and unchangeable in His justice; each is infinite, eternal and unchangeable in his wisdom and so on.

We will very briefly look at the roles of each member of the Trinity. Some roles are shared between members, so in these cases we are indicating which member is predominant in the role. Each member of the Trinity will receive more detailed attention later in our series. The Father. The Father created the world and chooses and calls some people to become Christians. The Son. The Son did the work necessary to allow people to become Christians. The Holy Spirit. The Holy Spirit helps Christians to live lives pleasing to God.

Common Errors

It is sometimes beneficial to examine certain errors to more fully understand the truth. There are two errors people commonly fall into when discussing the Trinity. We will use fancy names to describe them, though people who hold to these views may not be aware of these terms. It is the understanding, not the name that is important.

Monarchism says that in any grouping there must be a head (or king). It asserts that the Father is greater than the Son or the Holy Spirit. This is incorrect as all three members are equal in power, authority and every other attribute. Within Christendom there are several groups that teach variations of monarchism. This includes, for example, Jehovah’s Witnesses.

Modalism says that God is only one person who plays different roles depending on the situation. This is wrong as God has clearly revealed Himself as three distinct persons.

Conclusion

This concludes our brief introduction to the Trinity. The most important information to retain is that there is one God, but he is consists of three separate, equal, distinct persons, each with His own role. We will, of course, expand on these roles in more detail in later articles. First, though, we will turn our attention to The Bible.


  • A La Carte Collection cover image

    Weekend A La Carte (January 11)

    A La Carte: Parents can’t fight porn alone / Victory in Jesus (a new song) / Will you pass the test? / What God meant is what God means / Lessons from caring for a disabled child / and more.

  • Free Stuff Fridays (TGBC)

    This week’s Free Stuff Friday is sponsored by The Good Book Company. They are giving away a bundle of books for ministry leaders.  The Bundle includes: As you look at all things through the lens of the gospel, you’ll increasingly become the fully-formed follower of Jesus and servant of his church that you have been…

  • Trump, Trudeau, and the 51st State

    These are strange days in Canada. The incoming President of the United States has suddenly promised to slap a 25% tariff on cross-border trade—a tariff that has the potential to devastate the Canadian economy. Some suggest it could cost Canada a 3% hit to its economy and the loss of hundreds of thousands of jobs.…

  • A La Carte Friday 2

    A La Carte (January 10)

    A La Carte: Dawkin’s gender dilemma / The worst of all possible worlds / Value character over performance / Is heaven a real place right now? / Last of the middlebrow Protestants / Kindle deals / and more.

  • A La Carte Thursday 1

    A La Carte (January 9)

    A La Carte: Discipleship in the Reformed world / Why Christians need to watch out for Jordan Peterson / The forbidden woman and the path to death / I’m no gambler / a firm foundation in an uncertain world / and more.

  • Thoughts on Digital Libraries in 2025

    Thoughts on Digital Libraries in 2025

    Do I have a library made up of thousands of books or do I have a library made up of a couple dozen? I suppose it depends on what you count as a book. It has been many years—at least 15, I think—since I decided to go all-in with ebooks, a decision I have stuck…