To show that GOD destroys unbelievers who have rejected Him and prolongs the life of spiritual men who continues to trust Him.
Do you have confidence in yourself?
No. Only on JESUS.
Jeremiah 17:5-8 (Amplified Bible)
Thus says the Lord: Cursed [with great evil] is the strong man who trusts in and relies on frail man, making weak [human] flesh his arm, and whose mind and heart turn aside from the Lord.