Sermon:
Our Eternal God and Our Passing Days
Text: Psalm 90
Psalm 90 is a remarkable chapter of Scripture because it is a prayer written by Moses, the servant of God. Moses had seen kingdoms rise and fall, watched an entire generation perish in the wilderness, and experienced both the greatness of God’s power and the sadness of human failure. As he reflects upon life, he reminds us that while everything around us changes, God never does.
The psalm opens with these comforting words: “Lord, thou hast been our dwelling place in all generations.” Before there were houses, cities, nations, or even the mountains themselves, God was there. He is not simply the God of one generation but the God of every generation. Long before we were born, He was faithful. Long after we have gone, He will still reign upon His throne. The world may change, governments may change, and cultures may change, but our God remains the same yesterday, today, and forever.
Moses then contrasts God’s eternity with man’s frailty. Human life is compared to grass that flourishes in the morning but fades before evening. We often make plans as though we will live forever, yet the Bible reminds us that life is like a vapour. We are here for only a little while before we pass into eternity. This truth is not meant to make us fearful but wise. Every sunrise is a gift from God. Every day is another opportunity to love Him, serve Him, and point others to Christ.
The psalm also reminds us that sin has brought sorrow into the world. Death was never God’s original purpose for mankind. It entered because of sin. Moses acknowledges that God sees not only our outward actions but even our secret sins. Nothing is hidden from His holy eyes. This should humble us, for none of us can stand before God on our own righteousness. We all need His mercy.
Yet even in the midst of this solemn reflection shines one of the greatest prayers in Scripture: “So teach us to number our days, that we may apply our hearts unto wisdom.” Moses is asking God to help him live every day with eternity in view. Wisdom is not merely having knowledge; it is knowing how to live in a way that pleases God. A wise person realises that time is precious and cannot be recovered once it is gone. Every wasted day is a day that cannot be relived.
How different our lives would be if we truly numbered our days. We would forgive more quickly. We would complain less. We would spend more time in prayer and in God’s Word. We would be more eager to tell others about the Lord Jesus Christ while there is still opportunity. We would treasure our families, encourage fellow believers, and seek to glorify God in ordinary moments as well as extraordinary ones.
The final verses are filled with hope. Moses prays for God’s compassion, His joy, and His blessing. He asks the Lord to satisfy His people with mercy and to establish the work of their hands. What a wonderful request! Much of what we build in this world will eventually disappear, but anything done for the glory of God has eternal value. A sermon preached, a child taught the Scriptures, a word of kindness spoken in Christ’s name, a prayer offered in faith—these are works that God can establish for eternity.
Psalm 90 reminds us that our lives are short, but our God is eternal. We cannot add another day to our lives by worrying, but we can make every day count by walking with the Lord. The God who has been the refuge of every generation is still our refuge today. He is still saving sinners, strengthening believers, and guiding His people home.
If you have never trusted the Lord Jesus Christ as your Saviour, remember that life is uncertain but eternity is sure. Today is the day to come to Him in repentance and faith. If you already belong to Christ, ask Him to teach you to number your days. Live wisely, love deeply, serve faithfully, and leave the results in His hands.
As Moses concludes, so may our own prayer be:
“And let the beauty of the Lord our God be upon us: and establish thou the work of our hands upon us; yea, the work of our hands establish thou it.”
May God grant that when our brief journey on earth is finished, our lives will have pointed many others to the eternal God, who alone is our dwelling place forever. Amen.
GOD IS A GOOD GOD
GOD KNOWS, GOD LOVES, GOD CARES
Written for Georges Web Ministries.com
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6th July 2026