Understanding the Bible
This post is part of our Understanding the Bible series—short, clear explanations of common questions, phrases, images, and themes found in Scripture.
The goal is simple: to help you read the Bible more clearly by explaining what the text says, what it meant in its original context, and why it still matters today.
These studies are designed for personal Bible reading, small groups, teaching preparation, or anyone who wants to grow in biblical understanding without needing technical training.
On this page:
Quick Answer
In Jude 1:20, “build yourselves up in your most holy faith” means believers are to actively grow stronger in their faith by grounding themselves in truth, staying connected to God, and living in obedience to Him.
It is a call to spiritual growth, stability, and maturity in the face of false teaching.
Why This Question Matters
Jude spends most of his letter warning about false teachers, but near the end he shifts focus.
Instead of only exposing what is wrong, he begins to show believers what is right.
That is where Jude 1:20 comes in.
This verse is not about identifying deception—it is about strengthening believers so they are not easily deceived.
In other words, Jude is answering an important question: How do we stay faithful in a world full of false teaching?
His answer begins with this command: build yourselves up in your most holy faith.
The Passage in Question
Jude 1:20
“But you, beloved, building yourselves up in your most holy faith and praying in the Holy Spirit…”
This verse begins a section where Jude gives practical instruction to believers.
After describing the danger of false teachers, he turns to how Christians should respond:
- build yourselves up in the faith
- pray in the Holy Spirit
- keep yourselves in God’s love
- wait for the mercy of Jesus Christ
These commands work together to form a picture of a healthy, growing believer.
Simple Explanation
To “build yourselves up” is construction language.
It pictures a structure being strengthened, reinforced, and made stable.
Jude is saying:
- your faith should not remain weak or shallow
- your spiritual life should be growing stronger over time
- you must take responsibility for your spiritual growth
This is not about earning salvation. It is about strengthening what God has already given.
Healthy believers do not stay stagnant—they grow.
What Does “Build Yourselves Up” Mean?
The phrase means to strengthen, develop, and grow your spiritual life.
It carries the idea of building a solid foundation and continuing to add to it.
This involves intentional effort.
Jude is not calling believers to passivity. He is calling them to active participation in their growth.
This does not mean believers grow by their own strength alone. It means they engage with the means God has given for growth.
Spiritual growth is both:
- God’s work in us
- our responsibility to pursue Him
The command is plural, meaning this is something believers do together as well as individually.
The church is meant to be a place where people are strengthened in their faith.
What Is “Your Most Holy Faith”?
This phrase does not refer to personal feelings or subjective belief.
It refers to the body of truth that God has revealed—the gospel.
Earlier in Jude, he speaks of “the faith once for all delivered to the saints.” This is the same idea.
The faith is:
- the truth about who God is
- the truth about who Jesus is
- the truth about salvation
- the truth revealed in Scripture
It is called “most holy” because it comes from God and is set apart as true and pure.
This means we do not build our lives on opinions, trends, or culture.
We build on truth.
How Do We Build Ourselves Up?
Jude gives part of the answer immediately in the next phrase: “praying in the Holy Spirit.”
But the whole letter points to a broader picture of growth.
We build ourselves up by:
- knowing and applying God’s Word
- praying with dependence on God
- remaining in God’s love
- staying connected to other believers
- rejecting false teaching
- living in obedience to Christ
Spiritual growth is not automatic. It happens as we consistently pursue the things God has given us.
This is how believers become stable instead of easily shaken.
Strong faith is built, not assumed.
Deeper Dive
Jude’s command makes more sense when we remember the context.
He has just spent much of the letter describing false teachers who are:
- unstable
- empty
- self-centered
- deceptive
Now he calls believers to be the opposite.
Instead of being unstable, believers are to be built up.
Instead of being empty, they are to be filled with truth.
Instead of drifting, they are to be grounded.
This connects with other passages:
- Ephesians 4:14–15 – no longer tossed by every wind of doctrine
- Colossians 2:6–7 – rooted and built up in Christ
- Acts 20:32 – built up by the word of God
The pattern is clear: spiritual growth leads to stability, and stability protects against deception.
Weak faith is easily misled, but strengthened faith stands firm.
What This Means Today
Jude’s command is just as important today as it was then.
We live in a world where:
- truth is often questioned
- teaching is constantly available
- voices compete for attention
That means believers cannot afford to stay spiritually shallow.
We must grow.
This looks like:
- regular time in Scripture
- intentional prayer
- active involvement in church
- pursuit of obedience
Jude reminds us that growth is not optional. It is essential for staying faithful.
Strong believers are not easily shaken by false teaching.
What We Can Say with Confidence
- “Build yourselves up” means to grow stronger spiritually
- It is an active responsibility for believers
- “Most holy faith” refers to the truth of the gospel
- Growth comes through Scripture, prayer, and obedience
- Spiritual maturity protects against deception
Key Takeaway
When Jude says “build yourselves up in your most holy faith,” he is calling believers to actively grow stronger in truth so they are not easily led astray.
👉 Bottom Line: Faith that is built up in truth stands firm when deception comes.
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