In Psalm 90, Moses prays, “Teach us to realize the brevity of life, so that we may grow in wisdom” (Psalm 90:12, NLT). These words, penned thousands of years ago, are still profoundly relevant today. They invite us to reflect on a timeless truth: our days are limited, and that limitation holds purpose. Why does God set boundaries on our lifespan, and what can we learn from it? Let’s explore this question together.
1. A Reminder of Our Mortality
By limiting our lifespan, God reminds us that we are finite. We often live as though time is unlimited, yet Scripture consistently brings us back to reality. As Moses also writes, “You turn people back to dust, saying, ‘Return to dust, you mortals’” (Psalm 90:3). Recognizing our mortality fosters humility. It reminds us that life is not something we control but a gift from God.
Our culture often avoids confronting mortality, preferring to chase youthfulness and distract ourselves from the inevitable. Yet, embracing this truth helps us live with greater intentionality and reverence. When we understand that life is short, we can better focus on what truly matters.
Lesson: Life’s brevity encourages us to rely on God and prioritize eternal values over temporary pursuits.
2. To Foster Wisdom and Purpose
Moses’ prayer directly connects life’s brevity with wisdom: “Teach us to realize the brevity of life, so that we may grow in wisdom” (Psalm 90:12). Knowing our time is limited inspires us to make the most of it. How we spend our days reflects what we value.
When we realize that our lives are like a “mist that appears for a little while and then vanishes” (James 4:14), we begin to see time as a precious resource. This awareness prompts us to:
- Cultivate meaningful relationships.
- Serve others with love and humility.
- Invest in God’s kingdom through worship, discipleship, and outreach.
Lesson: Wisdom comes from living intentionally and aligning our lives with God’s purposes.
3. To Reveal God’s Eternal Nature
In contrast to our finite existence, God is eternal. Moses declares, “From everlasting to everlasting, you are God” (Psalm 90:2). Our limited lifespan highlights His infinite nature and unchanging character. This contrast draws us to worship and trust in Him.
By recognizing that God is eternal, we are reminded that our hope extends beyond this life. For believers, the brevity of life is not a source of despair but an invitation to anchor ourselves in the promise of eternity with Him.
Lesson: Life’s brevity points us to the eternal God and the hope of everlasting life.
4. To Protect Us from Prolonged Suffering
God’s limitation on human lifespan is also an act of mercy. After the fall of Adam and Eve, sin and its consequences entered the world. Genesis 6:3 reveals God’s decision to limit human life: “My Spirit will not contend with humans forever, for they are mortal; their days will be a hundred and twenty years.” This limitation prevents humanity from living indefinitely in a broken, pain-filled world.
For believers, the brevity of life is a reminder that suffering and sin are temporary. Revelation 21:4 assures us of a future where God “will wipe every tear from their eyes. There will be no more death or mourning or crying or pain.”
Lesson: Life’s brevity assures us that suffering is not eternal, and it points us to the promise of God’s restoration.
5. To Inspire Legacy and Faithfulness
Knowing that our days are numbered inspires us to leave a legacy of faithfulness. What will people remember about us? More importantly, how will our lives reflect God’s glory?
Paul exhorts believers in Ephesians 5:15-16: “Be very careful, then, how you live—not as unwise but as wise, making the most of every opportunity, because the days are evil.” Time is a gift, and we are called to steward it well. This includes faithfully using our talents, serving others, and living in a way that points people to Jesus.
Lesson: A limited lifespan motivates us to focus on faithfulness and building a legacy that glorifies God.
Closing Thoughts: Living with Eternal Perspective
The brevity of life is not a punishment but a gift—a tool that God uses to teach us humility, wisdom, and purpose. By numbering our days, we learn to:
- Depend on God.
- Prioritize eternal values.
- Live intentionally and with purpose.
Moses’ prayer in Psalm 90 is one we should all echo: “Teach us to realize the brevity of life, so that we may grow in wisdom.” When we embrace this perspective, we are freed from the fear of death and empowered to live each day with joy, purpose, and hope in God’s eternal promises.
