Is God Different in the Old and New Testaments?
Have you ever watched a movie and been completely caught off guard by a plot twist—something that made you go, Wait… what? That doesn’t even feel like the same character!
Maybe you’ve felt that way reading through the Bible, too.
You’re reading through the Old Testament and you come across stories of judgment—floods, fire from heaven, entire nations wiped out—and it feels intense, even scary.
Then you flip to the New Testament, and you see Jesus holding children, healing the sick, and talking about loving your enemies. And you wonder, Is this really the same God?
One seems harsh and just; the other, gentle and kind.
(At the very bottom of the page you can download a free printable version of this devotional, without ads or images! Includes study questions!)
As Christian women—whether we’re juggling Zoom meetings, laundry, or carpool lines—we crave consistency. We want to know that the God we’re following is trustworthy, that He isn’t going to change moods like a traffic light.
So, how do we make sense of the God who parted the Red Sea and wept at Lazarus’ tomb? The God who issued plagues and died on a cross for us sinners?
Let’s dig into this together.
God’s Character Has Never Changed
The Bible says in Malachi 3:6,
For I am the Lord, I change not.
And Hebrews 13:8 reminds us,
Jesus Christ the same yesterday, and to day, and for ever.
That’s our foundation—God has always been, and will always be, the same.
The difference isn’t in who God is, but in how He revealed Himself over time.
In the Old Testament, God was laying a foundation—showing His holiness, justice, and faithfulness to a people who were often rebellious and stubborn.
Much of the Old Testament is about God preparing the world for the Savior He promised to send.
In the New Testament, we see that promise fulfilled in Jesus. Through Christ, we see the fullest picture of God’s heart: a heart full of both truth and grace.
But make no mistake—grace is not new to the New Testament. God’s mercy and love are all over the Old Testament, too.
Sometimes we think justice and love can’t coexist, but they absolutely can.
Think about parenting. As moms, we deeply love our children—but when they disobey or rebel, especially repeatedly, we may get angry. Not because we hate them, but because we love them and want what’s best for them.
We correct them because we care.
We have different emotions, and yet we’re still the same person. We’re made in God’s image, and God too expresses different emotions.
He loves. He gets angry.
He is merciful. He is just.
But He is always and forever the same God.
For more help growing in your walk with God, you’ll want to be sure to check out all these Practical Ways to Get Closer to God Today!
Mercy in the Midst of Judgment
Let’s not forget: the same God who sent the flood also saved Noah and his family. The God who gave the Ten Commandments also forgave Israel again and again.
When you read closely, the Old Testament is overflowing with moments of God’s mercy—He was patient, compassionate, and so very kind, even when people didn’t deserve it.
And that’s really the key—none of us deserve His grace. Whether in ancient Israel or modern-day suburbia, we’re all in need of rescue.
The harshness we sometimes see in the Old Testament?
It’s a reflection of how seriously God takes sin—and how far He’s willing to go to deal with it so that we can live in relationship with Him.
Love That’s Bigger Than We Can Imagine
It all points to Jesus. Jesus didn’t come to change who God is—He came to reveal Him more clearly.
When we see Jesus healing, loving, and forgiving, we’re not seeing a different God. We’re seeing the same God making a way for us to know Him personally.
When we see Jesus healing, loving, and forgiving, we’re not seeing a different God. We’re seeing the same God making a way for us to know Him personally.
So if you’ve ever struggled with those hard parts of Scripture, take heart. Ask God to show you His heart in all of it.
The more you get to know Him, the more you’ll see that He is both just and merciful, holy and loving.
Always has been. Always will be.
A Short Prayer
Heavenly Father, Thank You that You never change. Help me to trust Your heart even when I don’t fully understand Your ways. Give me eyes to see Your mercy and love throughout all of Scripture, and help me to rest in the truth that You are the same yesterday, today, and forever. Draw me closer to You and deepen my understanding of who You are. In Jesus’ name, Amen.
Reflection Questions
- When you read stories of God’s judgment in the Old Testament, how do they make you feel? What do they teach you about His character?
- What are some examples of God’s mercy and love that you’ve seen in both the Old and New Testaments?
- How does understanding God’s unchanging nature bring peace to your everyday life?
You can download a pdf version of this devotional (without images or ads) plus the reflection questions to keep in your study binder or Goodnotes journal!
