The fear of the Lord prolongs days, but the years of the wicked shall be shortened. — Proverbs 10:27
For if we live, we live to the Lord. Or if we die, we die to the Lord. If therefore we live or die, we are the Lord's. — Romans 14:8

Author
Charles Spurgeon
Summary: The fear of the Lord leads us to virtuous habits that keep us from wasting our lives through sin and vice. Faith in Jesus brings rest that helps even in illness: when we face worry, trust in God gives us peace. We may hope for a long life and a good old age if that is for our good, without fearing death at every ailment. And if we are called home sooner, there is no reason to lament it: whether we live or die, we belong to the Lord. To truly prolong life is to live every hour without wasting it, devoting it to the highest purposes.
There is no doubt about it. The fear of the Lord leads to virtuous habits, and these prevent the waste of life that comes from sin and vice. The holy rest that springs from faith in the Lord Jesus is also a great help to a person when ill. Every doctor is glad to have a patient whose mind is completely at peace. Worry kills, but trust in God is like a healing medicine.
Therefore, we have everything in place for a long life, and if it truly is for our good, we shall see a good old age and come to our graves like sheaves gathered in their season. We should not be overcome by a sudden expectation of death the moment a finger hurts, but should rather expect to work through a considerable span of days.
And what does it matter if we are soon called to the higher realm? Surely there would be nothing to lament in such a call; rather, it would all be joy. Whether we live or die, we belong to the Lord. If we live, Jesus will be with us; if we die, we will be with Jesus. The true lengthening of life consists in living while we live, not wasting time but using every hour for the highest purposes. May it be so today.
Source: The Bank of Faith’s Checkbook. Translation by Allan Roman.
http://www.spurgeon.com.mx/chequera/meditames/junio.pdf