To show that unbelievers of this world died without fulfilling their duties and obligations before GOD that's why their family will be left with the same negligence of not knowing the LORD JESUS CHRIST as LORD and SAVIOR.
Are you doing your obligation before GOD?
Yes. The SEED OF ABRAHAM that lives within me is fulfilling it right now, He is my Hope of Glory.
Colossians 1:27 (Amplified Bible)
To whom God was pleased to make known how great for the Gentiles are the riches of the glory of this