If God does not allow sin to enter into Heaven then why is Satan allowed access to accuse the brethren?

What facts do we know about the fall of Satan? Did he cause other angels to rebel with him? Were the angels deceived or did they know what they were doing?

Can you explain the woman being hid in Revelation 12 and Israel's part in the tribulation?

I was always taught that angels did not have a free will but then I heard that 1/3 of the angels rebelled with Satan. How can this be if they have no free will?

A Jehovah's Witness told a friend of mine that Jesus and Michael the Archangel are one and the same. Could you help us refute this?

In Revelation chapter 9 we read about the loosing of four angels who have been bound in the Euphrates. Who are these angels? What is their purpose? Why were they bound in the Euphrates?

Are the demons or devils fallen angels or did they come from a different place?

We know that angels are ministering spirits but does man have the authority to command angels?

Do angels have a free will or a sin nature? Is there a plan of redemption for those angels who have fallen? Is there a time in the future when God will seal the angels in righteousness so that they cannot sin?

David Reagan's introduction to Doug Stauffer's new book, One Book Stands Alone.