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2 Peter 3:18 Meaning: Grow in Grace and Knowledge to Persevere

But grow in the grace and knowledge of our Lord and Savior Jesus Christ. To him be the glory both now and forever. Amen.

Meaning in one sentence

2 Peter 3:18 commands growth in grace and knowledge as the safeguard against falling from steadfastness, leading to glory to Christ now and forever.

II Peter New Testament Greek

Context

Peter has spent this final chapter urging his readers to hold fast. He warns them about scoffers, reminds them of the coming day of the Lord, and calls them to live blameless lives. In the verses just before this one, he tells them to be careful not to be carried away by error and fall from their own steadfastness. Then he gives this closing word: not just 'don't fall,' but 'grow.' The antidote to falling is not standing still. It is advancing into a deeper experience of grace and a richer knowledge of Jesus Christ. This verse is the hinge that swings the whole letter from warning into worship, ending with a doxology that ascribes glory to Christ both now and into the age that has no end.

Key Words

The word behind 'grow' is auxanō, the same word used for plants growing, for children maturing. It is a present imperative, not a one-time decision but a continuous, active process. Peter is not saying 'try to be bigger than you are.' He is saying 'keep growing, keep being nourished, keep reaching upward.' Growth is the sign of life, and the Christian life is meant to increase.

'Grace' here is charis, the undeserved favor of God that also includes every spiritual gift and virtue that comes from it. Growing in grace does not mean earning more favor; it means deepening your experience of the favor you already have, letting it shape your character and responses.

'Knowledge' is gnōsis, but in context it is personal, relational knowledge, not facts about Jesus but knowing Him as Lord and Savior. The two go together: grace without knowledge can become shallow feeling; knowledge without grace can become cold doctrine. Peter binds them so that growth is always toward a Person, not just an experience.

How Christians Read This Verse

Christians across traditions have seen this verse as essential to perseverance. Wesleyan readers emphasize that growth in grace is active cooperation with God's work, and without it the soul becomes sickly. Reformed readers like Calvin stress that continual progress is the only way to keep standing; you cannot stay where you are. Anglican commentators point out that knowledge here is set against the false knowledge of the false teachers, true knowledge of Christ guards the believer from error. Baptists like Gill note that both gifts and internal graces can increase through use. Despite different emphases, all agree that the command to grow is not optional; it is the path God gives for holding fast to the end.

A common misunderstanding

A common misreading is that 'grow in grace' means to accumulate more of God's favor, as if grace were a quantity we can stockpile. In fact, grace is God's unearned kindness, and growing in it means letting that kindness take deeper root in your life, changing how you think, speak, and act. It is not about having more of God's approval, but about being more fully shaped by the approval you already have in Christ.

Living This Out

This week, choose one area where you feel spiritually stuck, a habit you cannot shake, a relationship that tests your patience, a doubt that keeps returning. Instead of just trying harder to fix it, set aside five minutes each day to read about Jesus: a few verses from one of the Gospels, or a psalm that speaks of His goodness. Ask Him to show you something true about Himself that you have missed. Then let that truth sit with you through the day. Growth happens one small, honest look at Christ at a time.

Main takeaway: True perseverance comes not from holding still but from daily growth in the grace and personal knowledge of Jesus Christ.

For Families

For ages 5, 8

This verse says to grow in grace and knowledge of Jesus. That means you can learn more about Him every day. Just like a plant grows, you can grow in loving and following Jesus.

For ages 9, 12

Peter tells us that the best way to not fall into sin is to keep growing closer to Jesus. Growing in grace means letting God's kindness change how you act. Growing in knowledge means spending time reading the Bible and talking to God so you know Him better. It is not something that happens automatically, you have to choose to grow.

Questions People Ask

What does it mean to 'grow in grace'?

Growing in grace does not mean earning more of God's favor. Grace is God's undeserved kindness, and growing in it means deepening your experience of that kindness. As Adam Clarke wrote, every grace received is like a seed that can increase when watered by God. It means becoming more shaped by God's love in your thoughts, words, and actions.

How does knowledge of Christ help us persevere?

The false teachers boasted of special knowledge, but Peter calls believers to a different kind, personal, relational knowledge of Jesus as Lord and Savior. This knowledge anchors you. When you know Christ more deeply, you are less likely to be carried away by every false teaching or temptation. Calvin said that continual progress is the only way to persevere.

Why does Peter end his letter with a doxology to Christ?

Peter ascribes glory to Jesus Christ, using language normally reserved for God. This reflects the early Christian conviction that Jesus shares the divine honor. The Cambridge Bible notes that the Greek phrase 'to the day of eternity' points to the new age that begins with Christ's coming. The doxology turns the whole letter into worship.

What is the 'day of eternity' mentioned in some translations?

The phrase 'to the day of eternity' (BSB, Darby, Douay) translates a unique Greek expression: eis hēmeran aiōnos. It means the day that belongs to the age to come, a day without end. Peter contrasts our present time, where glory is given to Christ 'now,' with that eternal day when His glory will be fully seen.

Is this verse about the divinity of Christ?

Many commentators, from Calvin to the Cambridge Bible, see this as a strong statement of Christ's divinity. Peter gives glory to Jesus Christ using words that belong to God alone. John 5:23 says that all should honor the Son as they honor the Father. This doxology is one of many places in the New Testament where Jesus is worshipped as God.

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