Let them now that fear the LORD say, that His mercy endureth for ever. -Psalm 118:4

You know that, in a wheel there is one portion that never turns round, that stands steadfast; and that is the axle. So in God’s Providence, there is an axle which never moves. Christian, here is a sweet thought for thee! Thy state is ever changing; sometimes thou art exalted, and sometimes depressed; yet there is an unmoving point in thy state. What is that axle? What is the pivot upon which all the machinery revolves? It is the axle of God’s everlasting love toward His covenant people. The exterior of the wheel is changing, but the center stands forever fixed…You observe, when the wheel moves very rapidly you can discern nothing but the circumference-nothing but the exterior circle. So, if you look back to history, and read the story of a thousand years, you just set the wheel of Providence revolving rapidly; you lose sight of all the little things that are within the circle; you see only one great thing, and that is, that God is working through the world His everlasting purposes… Take the whole together, instead of the things one by one; look at a thousand years, and you will see nothing but one round ring of symmetry, teaching you that God is wise, and God is just. So let it be with you in your lives. Here you are fretting about troubles today. Think also of the past; put all your troubles together, and they are no troubles at all. You will see that one counteracts the other. If you take your life-not today, but look back on forty years of it-you will be obliged, instead of lamenting and mourning, to bless God for His mercies toward you. Let the wheel go round, and you will see nothing but a ring of everlasting wisdom revolving. ~ C.H. Spurgeon

https://www.blueletterbible.org/Comm/spurgeon_charles/sermons/3114.cfm