Here are 5 Bible verses about getting old from the Old and New Testaments of the Holy Bible (King James Version), sorted from most to least relevant.
Isaiah 46:4 KJV
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.
Proverbs 20:29 KJV
The glory of young men is their strength: and the beauty of old men is the grey head.
Psalms 92:12-14 KJV
The righteous shall flourish like the palm tree: he shall grow like a cedar in Lebanon. Those that be planted in the house of the LORD shall flourish in the courts of our God. They shall still bring forth fruit in old age; they shall be fat and flourishing;
1 Peter 1:24 KJV
For all flesh is as grass, and all the glory of man as the flower of grass. The grass withereth, and the flower thereof falleth away:
Philemon 1:9 KJV
And this I pray, that your love may abound yet more and more in knowledge and in all judgment;