When this universe is burned up at the end of the world (2 Pet. 3:10-13), what will God have left to show for all of his work?  Only the unseen eternal things will be left.  Minds, hearts, and souls –  the inner eternal nature of man will be left (2 Cor. 4:16-18).   What is in each mind, heart and soul is going to be of utmost importance on judgment day.  If a man’s heart is full of evil, God can not use him.

He that is faithful in that which is least is faithful also in much: and he that is unjust in the least is unjust also in much.  If therefore ye have not been faithful in the unrighteous mammon, who will commit to your trust the true riches?  And if ye have not been faithful in that which is another man’s, who shall give you that which is your own?   (Luke 16:10-12).

God is concerned about our hearts.  Are they faithful?  Note God’s judgment of the heart.  Why is this principle true?  If the heart is faithful in little, that same heart is faithful.  It does not matter how much or how little it has.  It will always be faithful in every circumstance and time.  Conversely, if the heart is unfaithful, the amount will not matter.  God’s question is: are we faithful with what he has given us now?  We are faithful, if our hearts are faithful.  If our hearts are unfaithful here on this earth, they will be unfaithful in heaven.  Moses was faithful here.  He has the same kind of heart.  He will be faithful no matter where he is.  Faithfulness is a matter of the spiritual heart.  What is our mind, heart and soul going to be like when we leave this world?  God is very concerned about this because these and what is in them will be what God has left when this world has ended.