Key points
God is eternal and unchanging.
Psalm 90:2
God has no beginning and no end, and He never changes in His nature, character, purposes, or promises. God did not become God—He has always been God, and He always will be.
God is the only constant in our constantly changing life.
Malachi 3:6
Our bodies, families, jobs, and governments all change. God is never surprised by tomorrow, so His promises are secure, and He is the only adequate foundation to build a life on.
There is one God—and my entire life should show it.
Deuteronomy 6:4–5
God isn't one of many gods; He alone is God. That leaves one authority over how we speak, spend, and live, and makes Him alone worthy of our worship. We're supporting characters in His story, not the other way around.
The one God exists as Father, Son, and Spirit.
Matthew 28:19
Scripture calls the Father God, the Son God (John 1:1), and the Spirit God (Acts 5:3–4), and insists there is one God. We don't believe in the Trinity because we fully understand it; we believe it because Scripture compels us to.
The Trinity changes the way you understand salvation and prayer.
Ephesians 2:18
The Father plans our salvation, the Son accomplishes it on the cross, and the Spirit applies it. When we pray, we come to the Father, through the Son, by the Spirit—God isn't distant.
The most important thing about you is what you believe about God.
Matthew 16:15
We don't get to decide who God is; He has revealed Himself in His Word. The question becomes personal: Jesus asks each of us, “Who do you say that I am?”
Highlights
“God did not become God. God has always been God. God will always be God.”
Watch from 9:05 “I don't know what tomorrow holds. You don't know what tomorrow holds, but I know God who holds tomorrow, and He does not change.”
Watch from 13:33 “I can't treat God like a supporting character in my life. I am a supporting character in God's story.”
Watch from 18:47 “We don't believe in the Trinity because we fully understand it. We believe in the Trinity because the Scripture compels us to.”
Watch from 24:10 “Christianity is not about winning an argument about the nature of God. … It's an invitation to know and worship and surrender your life to the one true God.”
Watch from 30:05
Discussion questions
For a small group, with family, or on your own.
- What is something in your life that has changed dramatically in the last five or ten years? How have you responded to that change?
- Read Psalm 90:2, Malachi 3:6, and James 1:17. What do these passages teach about God's eternality and unchanging nature? Why should those attributes give Christians confidence in an uncertain world?
- “God is the only constant in our constantly changing life.” Where are you most tempted right now to find security in something temporary rather than in God?
- Read Deuteronomy 6:4–5 and Isaiah 43:10–11. What are some practical implications of there being only one true God? What things in our culture (or in your own life) most easily compete with God for your worship, allegiance, or obedience?
- Historic Christianity teaches that there is one God who eternally exists as Father, Son, and Holy Spirit. Which aspect of the biblical case for the Trinity was clearest or most helpful to you? What aspect is still difficult to understand?
- Read Ephesians 2:18. What does it mean that Christians come to the Father, through the Son, by the Spirit? How could understanding the Trinity practically change the way you pray this week?
- The message ended with Jesus' question: “Who do you say that I am?” (Matthew 16:15). If what we believe about God shapes everything else, where does your view of God most need to affect the way you think, speak, make decisions, worship, or live this week?
