An older lady was in the hospital reading her Bible when her doctor came in for his visit. She asked him how she was doing.
He told her to read, Hebrews 13:8 (NKJV), which says, "Jesus Christ is the same yesterday, today, and forever," meaning she was about the same.
However, she reversed the numbers and read Hebrews 8:13, "Now what is becoming obsolete and growing old is ready to vanish away," which concerned her very much.
While the writer of Hebrews was writing about the "old covenant," the words could just as accurately been written to describe each and every one of us. Like it or not, we are all growing old and it won't be very long before we will vanish away from this world. God's Word describes our life on this earth as a "flower of the field" that passes away (James 1:10) and "a vapor that appears for a little time and then vanishes away" (James 4:14).
We don't like to think of life in that way. We live in an age that likes to think it makes things that last. We have our plastic and non-breakable jars and cups. We buy a car battery and are given a guarantee that it will last as long as we own our car. So, we would like a guarantee that our bodies could last forever, and somebody — usually trying to sell us something — may try to tell us they can. However, this is just not the case.
For our light affliction, which is but for a moment, is working for us a far more exceeding and eternal weight of glory, while we do not look at the things which are seen, but at the things which are not seen. For the things which are seen are temporary, but the things which are not seen are eternal (2 Corinthians 4:17-18 NKJV).