Teach us to Number our Days, O Lord

Sermon on Psalm 90
Twenty-First Sunday After Pentecost
Our Hope Lutheran Church
October 13-14, 2024

Text: Lord, you have been our dwelling place in all generations. Before the mountains were brought forth, or ever you had formed the earth and the world, from everlasting to everlasting you are God.

You return man to dust and say, “Return, O children of man!” For a thousand years in your sight are but as yesterday when it is past, or as a watch in the night. You sweep them away as with a flood; they are like a dream, like grass that is renewed in the morning: in the morning it flourishes and is renewed; in the evening it fades and withers. For we are brought to an end by your anger; by your wrath we are dismayed. You have set our iniquities before you, our secret sins in the light of your presence.

For all our days pass away under your wrath; we bring our years to an end like a sigh. The years of our life are seventy, or even by reason of strength eighty; yet their span is but toil and trouble; they are soon gone, and we fly away. Who considers the power of your anger, and your wrath according to the fear of you?

So teach us to number our days that we may get a heart of wisdom. Return, O LORD! How long? Have pity on your servants! Satisfy us in the morning with your steadfast love, that we may rejoice and be glad all our days. Make us glad for as many days as you have afflicted us, and for as many years as we have seen evil. Let your work be shown to your servants, and your glorious power to their children. Let the favor of the Lord our God be upon us, and establish the work of our hands upon us; yes, establish the work of our hands!

Introduction: Our God, our Help in ages past, our Hope for years to come, our shelter from the storm blast, be Thou our Guard while troubles last, and our eternal Home. Amen.

‌Grace, mercy and peace, be to you from God our Father and from our coming Lord Jesus Christ.

‌Time is a curious thing. When we are little, it seems to go on forever. As we grow older, we start to notice time passing. First hours pass quickly, gone before we know it. Then days vanish and then months. As we get old, years disappear as well. We soon can grasp how a thousand ages in God’s sight are like an evening gone.

‌Yet sometimes time means nothing at all to us. We are filled with all the things that we can do and the plans that we can set for the future. Our minds and attention are filled with the things we must do, with the worries and challenges set before us. We can become quite busy with life, liberty, and the pursuit of happiness. In the moments when we achieve our goals, we can be so filled with joy that we wish it would never end.

In ancient Rome, the city would celebrate its conquering generals with a triumph, a parade, in which the public could cheer them on. It is a lot like the big victory parades we celebrate today. Legend tells us that, during the triumph, a slave would whisper into the general’s ear, “memento mori” — “remember you will die.” It seems kind of morbid, doesn’t it? But, when we think about it, it’s not. It’s easy to forget God when we enjoy the blessings he gives us. It is why Moses urges us to pray: “teach us to number our days that we may get a heart of wisdom.”

There are many reasons why it is wise to remember that we are mortal. One is that we can easily become accustomed to the blessings God has given us. It is easy to take them for granted and not as gifts God has given us to enjoy and to allow us to serve him and others. While we have the time, we need to thank God for them, enjoy the people he has placed in our lives, share the gospel with them. We may have time to do these things, but we do not know how long. Only God has our days numbered. Time, like an ever-rolling stream, bears all its sons away. They fly forgotten as a dream dies at the opening day.

Another reason is that this world itself is filled with the curse that came from Adam’s sin—and ours. Death and decay are all around us. We walk in the valley of the shadow of death. Hurricanes Helene and Milton have rudely reminded us this week that in an instant our lives can change. Satan, the World and our passions work to weaken our trust in God when the routines of our life lull us into complacency. We must never forget that God’s word commands our flesh to dust, “return child of men.”

As much as we like to think we deserve the things we have, our accomplishments and our relationships, we have none of these except by the grace and mercy of God. Our sins earn us nothing but sin and death. But because before the hills in order stood or earth received her frame, God loved us. The son of God came just in time, born of the virgin Mary, to bear our sins to the cross. There it paid for them all in his suffering and death. Having broken the seal of the grave, he rose from the dead that, even though we will return to dust, we will rise to everlasting life on the day of the resurrection of all flesh.

Yes, time is a funny thing. Our days are numbered, so it is really not right to say a particular life is short or long. God’s plan for it will come to pass and it will instead be complete. And yet—in a very real sense—our life will not end. We live our lives under the shadow of his throne, where we dwell secure. When the end of our days come, God’s own angels will carry us home where we will be at rest until, at his call, our bodies will rise again from death and we will live with God, body and soul, forever. After all, we are visitors here—God is our eternal home.

Our God, our Help in ages past, our Hope for years to come, be Thou our Guard while troubles last and our eternal home.

Rev. Robert E. Smith
Pastor Emeritus
Fort Wayne, Indiana

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