(Pro 16:31 KJV) The hoary head is a crown of glory, if it be found in the way of righteousness.
What is a "hoary head"? That is King James for gray hair. You may be familiar with the term hoar frost. It refers to a coating of white on the grass or glass on a winter morning. Here is shows who has the cool heads.
Do not die your gray hair! Notice that it is a “crown” (5850) of “glory” (8597). When we read the word we find so many ideas that go against our culture. We live in a youth culture. Getting old is a fate worse than death. The old are looked down on. Don’t give in to the values of a world that rejects the authority of God.
Obviously being old does not make you wise. You can be an old fool. But all things being equal life should have taught you something. Experience can teach.
(Full disclosure: I have had gray hair for years.)