Jesus answered, "The work of God is this: to believe in the one he has sent."
Then He should be believed:
....At His coming all people will rise again with their bodies and give an account concerning their own deeds.
And those who have done good will enter into eternal life, and those who have done evil into eternal fire.
The question being--how does one fit that into Lutheran theology?
Think of that--Lutherans having a confession which defies their own beliefs! And that--from the Savior Himself.