HRE4M1 · Unit 1 · Lesson 3

The Nature of God

One God, Trinity, divine attributes, and love at the heart of God
A Study in the Nature of God

Welcome to Unit 1.3

This lesson explores who God is: one, transcendent, immanent, triune, holy, all-knowing, all-powerful, personal, and loving.

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Before We Begin

What Do You Mean by “God”?

Before studying Christian claims about God, begin with your current understanding.

People use the word God in very different ways. Some imagine a distant ruler, some imagine a personal Father, some imagine an impersonal force, and some are unsure what the word means.

Write your starting point honestly. What do you think Christians mean when they say God is real and personal?

0 wordsMinimum: 35 words
Part One · Core Christian Claims

One God, Beyond Us and Near Us

Christianity begins with the claim that there is one God, but that this one God is not simple in the shallow sense. God is transcendent, immanent, and Trinity.

Christianity is monotheistic. This means Christians believe in one God, not many gods and not a divided divine universe. This belief continues the Jewish faith expressed in the Shema: “The LORD is our God, the LORD alone.”

At the same time, Christianity teaches that God is transcendent and immanent. God is transcendent because He is beyond creation, beyond time, space, and full human understanding. God is immanent because He is also near, active, and present within creation.

The most uniquely Christian claim is the Trinity: one God in three divine Persons, Father, Son, and Holy Spirit. This does not mean three gods. It means the one God is eternally relational. God is communion and love in Himself.

“Go therefore and make disciples of all nations, baptizing them in the name of the Father and of the Son and of the Holy Spirit.”Matthew 28:19
Quick Check
Which statement best summarizes the Christian understanding of God introduced in this section?
Pause and Reflect
Choose one core claim, monotheism, transcendence, immanence, or Trinity. Explain it in your own words and why it matters.
0 wordsMinimum: 60 words
Part Two · Vocabulary

Ten Terms to Know

Open each card before moving on. These words will shape the rest of the lesson.

Monotheism
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Belief in one God. Christianity teaches that there is only one true God, Creator and sustainer of all things.
Transcendence
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God is beyond creation, beyond time, space, and full human comprehension.
Immanence
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God is present and active within creation. He is not distant or detached from the world.
Trinity
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The mystery that the one God exists as three divine Persons: Father, Son, and Holy Spirit.
Holiness
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God’s perfect goodness, purity, and separation from sin or evil.
Omnipresence
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God is present everywhere. There is no place or moment outside God’s presence.
Omniscience
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God is all-knowing. God knows all things, including our thoughts, needs, and intentions.
Omnipotence
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God is all-powerful. Nothing genuinely possible is beyond God’s power.
Personal Nature
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God is not an impersonal force. God is Someone who knows, loves, speaks, wills, and invites relationship.
God is Love
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Love is central to God’s nature. In the Trinity, God is an eternal communion of self-giving love.
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Part Three · Attributes Set One

Holiness, Transcendence, and Omnipresence

These attributes help us understand God’s greatness, purity, and nearness.

Holiness

To say God is holy means God is perfectly good, pure, and set apart from all evil. God’s holiness is not merely being “better” than humans. It means God is goodness itself without any mixture of sin or corruption.

“Holy, holy, holy is the LORD of hosts; the whole earth is full of his glory.”Isaiah 6:3

Transcendence

God is infinitely beyond creation. God is not just a powerful being inside the universe. He is the Creator and source of everything that exists. This means God cannot be reduced to a human image or controlled by human categories.

Omnipresence

God is present everywhere. This does not mean God is identical with everything. It means nothing exists outside God’s sustaining presence. This can bring comfort because there is no place where God cannot be found.

Quick Check
Which option best explains omnipresence?
Pause and Reflect
Choose holiness, transcendence, or omnipresence. Explain what it means and how it could affect the way someone prays or lives.
0 wordsMinimum: 70 words
Part Four · Attributes Set Two

Omniscience, Omnipotence, and a Personal God

God is not only infinitely great. God also knows, acts, and loves personally.

Omniscience

God knows all things: the past, present, future, the laws of creation, and the hidden depths of the human heart. This can be sobering because God sees what is hidden, but also comforting because God understands us completely.

Omnipotence

God is all-powerful. This does not mean God does logical nonsense or acts against His own goodness. It means nothing genuinely possible is beyond God’s power. Creation, miracles, mercy, and salvation all reveal God’s power.

God’s Personal Nature

Christianity does not teach that God is an impersonal force. God is Someone who knows, wills, speaks, loves, and invites relationship. Jesus reveals God as Father, and the image of the Good Shepherd shows God’s personal care.

“I no longer call you servants… but I have called you friends.”John 15:15
Quick Check
Which statement best explains God’s personal nature?
Pause and Reflect
How might God’s omniscience, omnipotence, or personal nature affect the way a person prays?
0 wordsMinimum: 80 words
Part Five · Love at the Center

God Is Love

Of all the attributes used to describe God, love stands at the center of Christian faith.

The New Testament says plainly, “God is love.” This does not mean love is the only thing we can say about God, but it does mean that every divine attribute is perfectly united with love. God’s power is loving power. God’s knowledge is loving knowledge. God’s holiness is loving holiness.

John 3:16 is one of the clearest expressions of this: God loves the world so much that He gives His Son so that humanity may have eternal life. Love is not just a feeling in God. It becomes action, gift, sacrifice, and salvation.

“For God so loved the world that he gave his only Son, so that everyone who believes in him may not perish but may have eternal life.”John 3:16

This also connects back to the Trinity. If God is Father, Son, and Holy Spirit, then God’s inner life is an eternal communion of love. God creates not because He is lonely or lacking, but because love overflows and wants to share goodness.

Quick Check
What does John 3:16 reveal about God’s love?
Pause and Reflect
If God’s very nature is love, what should that change about how Christians understand themselves and treat others?
0 wordsMinimum: 80 words
Part Six · Scripture and Church Teaching

How the Church Speaks About God

The Church uses Scripture, creeds, and the Catechism to protect the mystery of God from being reduced or distorted.

The Nicene Creed begins, “I believe in one God.” It then names the Father, the Son, and the Holy Spirit. This is the Church’s careful way of holding together monotheism and Trinity.

The Catechism calls the Trinity the central mystery of Christian faith and life. This means the Trinity is not a side topic. It shapes everything Christians believe about creation, salvation, prayer, worship, love, and human relationship.

CCC 221 also teaches that God’s innermost secret is that He is an eternal exchange of love, Father, Son, and Holy Spirit, and that God has destined us to share in that love.

“The mystery of the Most Holy Trinity is the central mystery of Christian faith and life.”Catechism of the Catholic Church, §234
Quick Check
Why is the Trinity called the central mystery of Christian faith and life?
Pause and Reflect
Why do you think the Church uses creeds and doctrine to speak carefully about God, even though God remains a mystery?
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Part Seven · Conclusion

A God of Greatness and Nearness

The Christian understanding of God is both awe-inspiring and deeply personal.

In this lesson, you studied many claims about God: one God, Trinity, transcendence, immanence, holiness, omnipresence, omniscience, omnipotence, personal nature, and love.

These attributes are not random labels. Together, they form a picture of God as infinitely greater than creation and yet lovingly near to every person. God can create galaxies and still know each person by name. God is holy and majestic, yet also Father, Shepherd, and Friend.

The lesson also reminds us that God remains mystery. Christian language about God is true, but never exhaustive. We can know what God has revealed, but we cannot fully contain God in our minds.

Pause and Reflect
Which attribute of God from this lesson is most meaningful, challenging, or difficult for you to understand? Explain why.
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Part Eight · Knowledge Check

Check Your Understanding

Answer all seven questions. You will see the correct answer and explanation after each choice.

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Part Nine · Think Deeper

Go Beyond Recall

These questions ask you to apply the lesson, not just repeat definitions.

How can God be both transcendent and immanent? Why is it important that Christians do not reduce God to only one of those ideas?

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How does believing God is personal and loving change the way a person might pray, trust, forgive, or make moral choices?

0 wordsMinimum: 130 words
Part Ten · Final Synthesis

Pull the Lesson Together

Bring the major ideas from the lesson into one thoughtful response.

Write a clear response explaining the Christian understanding of God. Include at least four ideas from the lesson, such as monotheism, Trinity, transcendence, immanence, holiness, omniscience, omnipotence, personal nature, and love.

0 wordsMinimum: 160 words
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