The preacher was told that he had cancer, just a little while to live, and he went back to his cabin and one moonlit night he looked out the window and saw the mountains that he loved so much. And that mountain stream that flowed down. He looked up at the stars so clear and bright in the winter sky, and he said to the mountains, “Mountains, when you are no more I will still be.” And he said to that mountain stream, “Stream, when you no longer flow to the ocean I’ll still exist.” And he looked up at the stars in the sky and he said, “Stars, when you are nothing but cinders in eternity, when you are no longer in your sockets, I will still be around for I have everlasting life given to me by the Lord Jesus.”
What is there in this life permanent, abiding, lasting? What is there cannot be shaken? God. His word, moral law, Jesus the Savior, and our heavenly home. Build on that and you are building on rock.