Jude 1:20 tells believers to keep strengthening themselves by holding firmly to their most holy faith, and to do this while praying in the Holy Spirit. The verse is a short instruction for daily Christian living, not a complicated doctrine. Jude, a brother of Jesus and of James according to the letter’s own opening, writes it to a group of believers facing false teachers who were pulling the church away from sound faith. He addresses them tenderly as “beloved,” which signals that his warning comes from care rather than anger.
But you, beloved, keep building up yourselves on your most holy faith, praying in the Holy Spirit.
Jude 1:20 (WEB)
What Jude 1:20 Means
The verse begins with “keep building up yourselves,” a phrase that pictures faith as a structure that must be added to over time. Jude is not saying you create your own spiritual strength from nothing. He is calling you to keep adding to what has already been given, the way a builder keeps laying stone on stone. The word “yourselves” points to personal responsibility: each believer has a part in this growth, even while God supplies it.
Next, the verse names the foundation: “your most holy faith.” This is the body of Christian truth and trust handed down to the church, the faith that rests on Jesus and the apostles’ teaching. The image of building on a foundation tells you that faith is meant to be stable and growing, not something you rebuild from scratch every time doubt or pressure arrives.
Finally, Jude says to pray “in the Holy Spirit.” He does not spell out every detail of what that means, but the context points to prayer that is led by God’s Spirit, shaped by the truth and reaching toward God in dependence and trust. The verse does not promise that every prayer will be answered in a particular way or that growth will feel quick or easy. It describes a steady, ongoing practice of building your life on Christ through prayer.
The Context of Jude 1:20
The letter of Jude is very brief, a single chapter that was written to warn believers about people who had slipped into the church and were twisting God’s grace into an excuse for immorality and division. Jude draws on earlier examples of judgment and reminds his readers of what the apostles had already taught about mockers who would appear in the last days. Verse 20 sits at the center of a passage meant to steady his readers, not frighten them into silence.
Just before verse 20, Jude tells his readers to remember the words spoken by the apostles, and just after it he says to keep yourselves in God’s love while looking for the mercy of the Lord Jesus. That surrounding pattern shows that building up your faith and praying in the Spirit are closely tied to staying anchored in God’s love and hope. Read this way, the verse is less about spiritual effort in isolation and more about holding firm to what is true while expecting God’s mercy.
Key Phrases in Jude 1:20
Ephesians 3:17
That Christ may dwell in your hearts through faith; to the end that you, being rooted and grounded in love…
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Paul prays that Christ may dwell in believers through faith, and that they may be rooted and grounded in love. This pairs well with Jude’s picture of building on a firm foundation, showing that the strength of your faith comes from Christ’s presence within you.
Romans 8:26
In the same way, the Spirit also helps our weaknesses, for we don’t know how to pray as we ought. But the Spirit himself makes intercession for us with groanings which can’t be uttered.
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Paul writes that the Spirit helps our weakness in prayer, interceding with groans too deep for words. This verse expands on what it means to pray in the Holy Spirit, showing that the Spirit actively supports believers when they struggle to pray.
A Short Prayer From Jude 1:20
Lord, you have given me a faith that is holy and firm, and I ask you to help me keep building on it day by day. When my thoughts are scattered or my heart feels weak, draw me back to the truth I have been given. Teach me to pray in your Spirit, trusting that you hear me even when my words fall short. Strengthen me in your love, and let my life be a steady building that honors you. Amen.
