God expects His people to be wise and realize when your time has come. Sometimes we get used to a certain way of doing things and make it a permanent feature in our lives. We think that what was good to do yesterday becomes good to do forever, but not so. Yesterday was for yesterday, today is for today, and tomorrow will be for tomorrow. We changes in line with the changing of the times and seasons. (Thank God for, “No child (us J) left behind”).
The only person who remains eternal and unchangeable is God Almighty.