Many people want to live a long time. Doctors are in the business of helping people live longer. Some scientists are researching treatments and medicines that will help people live longer.

No matter how long a person lives, it is a very short time compared to eternity. God is eternal. He will never die. In fact, he created time. He has always existed. He existed when there was no time, and he will exist when time ends.

Psalm 90 is supposed to have been written by Moses. In this psalm, Moses talks about the insignificance of man's life compared to God. This briefness of life should impress on each person that obedience to God is very important.

In verse 4, Moses says that a thousand years is like yesterday to God. In verse 10, Moses says that the average age of death for man in his time was 70 years and if fortunate it was 80 years.

In verse 5, Moses says God carries away man as with a flood. This is interesting. In another instance where the 1000-year time period is mentioned, the Flood is part of the context. In 2 Peter 3, Peter is telling those who say things have never changed that they are wrong. The world was destroyed by the Flood. He says that with God 1000 years is no different than a day.

It is possible that Moses and Peter are referring to a biblical character though not mentioning his name. The oldest man who ever lived died in the year of the Flood. Methuselah lived to be 969 years old. We are not told but it is possible that he died during the Flood. But even if he did not, he died in that same year before the Flood.

In Psalm 90, Moses is likely stating that whether you live as old as Methuselah or you live an average lifespan, your life will still end. So, as he states in verse 12, we each should number our days and apply ourselves to get wisdom.

Study your Bible. Learn all you can about God's will. Obey God. Get the wisdom of God, so that no matter how long you live you will be close to God in this life and the life after.

Have you ever been to a hospital? Have you ever been very sick and had to stay at home? Have you seen doctors and nurses wear gloves and masks?

Some diseases and infections are very contagious. Contagious means that the people that are not sick can get sick if they are around the sick person. The sick person may have a germ or virus that the healthy person will get if the healthy person gets close to him. The germ or virus may be on anything in the room of the sick person. The sick person is kept in one hospital room. Or the person may be told to stay inside his own home. This is known as putting someone in isolation.

So doctors and nurses may wear gloves to keep from getting the germ or virus on their hands. They throw the gloves away when they leave the room. The doctors and nurses may wear a mask to keep from breathing the germ or virus. Sometimes it is necessary for the sick person to wear the mask to keep from breathing the virus or germ on other people.

Germs and viruses were not discovered until about the last one hundred years. Before that time people did not have the technology to see them or find them.

But in the Bible God gave instructions to the Israelites that helped keep them from getting sick. In Leviticus 13:1-14:57, there are many instructions regarding keeping someone in isolation to be observed for a contagious disease. Once a person was known to have a contagious disease, he was put outside the camp until he was well. He was required to wear a covering over his mouth and warn others to stay away from him.

God could tell the Israelites these things because he created the whole universe. He knows everything there is to know. And he wants the best for those who follow him. He always gives instructions that are the best for us.

Study your Bible. Learn what you need to do to obey God. And if any of this is hard to understand, ask an adult to help you.