No weaseling around it — unfallen angels sometimes DO get a broader role towards unbelievers than Lutzer allows for. As a “Fightin’ Fundie” I object to presuming more broadly than the bible, but I object to presuming more narrowly than the bible too. If God knows ahead of time at some point who is going to ultimately accept Christ (I am deliberately avoiding the Arminian-Calvinist debate about the details) then God can send angels to help those people while they are still unbelievers without introducing anything not already stated in his Word.
A story line which elaborated this wouldn’t fit into a neat 30 minute or 60 minute show, however.
This may well be the explanation for Angels going to the Shepherds to announce the birth of Jesus Christ, or the example noted by Harley D. I think a constant might be that in these rare examples the individuals ultimately were saved.
I'll have to go back and read the series. Angels are an extremely interesting topic but one in which there isn't a whole lot of info on. All I can say is that I doubt if they like being pictured as fat little babies with wings. Never picture anyone in caricature who is carrying a flaming sword-that's my motto.
Angels generally are messengers to carry out God's will either through word or deed. I believe the gospel message is given to believers to share with unbelievers. We (believers) have been appointed to help others come to a saving knowledge, although we don't fully recognize or appreciate the power and authority of God's word which we have. The gospel, strangely enough, does not seem to be given to angels to share with unbelievers (e.g. Cornelius). God seem to have set tasks and appointments for each of His creatures.