And even to your old age I am he; and even to hoar hairs will I carry you: I have made, and I will bear; even I will carry, and will deliver you. (Isaiah 46:4)
The year is very old, and here is a promise for our aged friends; yes, and for us all, as age creeps over us. Let us live long enough, and we shall all have hoar hairs; therefore we may as well enjoy this promise by the foresight of faith.
When we grow old our God will still be the I AM, abiding evermore the same. Hoar hairs tell of our decay, but He decayeth not. When we cannot carry a burden and can hardly carry ourselves, the Lord will carry us. Even as in our young days He carried us like lambs in His bosom, so will He in our years of infirmity.
He made us, and He will care for us. When we become a burden to our friends and a burden to ourselves, the Lord will not shake us off, but the rather He will take us up and carry and deliver us more fully than ever. In many cases the Lord give His servants a long and calm evening. They worked hard all day and wore themselves out in their Master’s service, and so He said to them, “Now rest in anticipation of that eternal Sabbath which I have prepared for you.” Let us not dread old age. Let us grow old graciously since the Lord Himself is with us in fullness of grace.
C.H. Spurgeon, Faith’s Checkbook