Revelation:12:9: And the great dragon was cast out, that old serpent, called the Devil, and Satan, which deceiveth the whole world: he was cast out into the earth, and his angels were cast out with him.
Revelation:12:3-4:
3: And there appeared another wonder in heaven; and behold a great red dragon, having seven heads and ten horns, and seven crowns upon his heads.
4: And his tail drew the third part of the stars of heaven, and did cast them to the earth: and the dragon stood before the woman which was ready to be delivered, for to devour her child as soon as it was born.
The dragon is obviously Satan,and the stars represents the angels.
Angel basically means messenger. If you look at every reference in the Bible, you will see they are delivering a message. By the way, people do not become angels after they die and go to heaven.
They are the angels in heaven.
The Bible does not directly say that angels have the will to choose for themselves, but without free will, how could Lucifer and a third of the angels rebel against God and heaven
There isn't an answer to that, because it wasn't mention in the bible and also there are many angels in heaven.
The bible calls them saints which are different than angels. Angels are created beings but were never human.
Yes, the Bible gives several accounts of angels sinning, i.e. Lucifer and his fall from Heaven because of his pride and greed.
Fallen angels are those angels who are rebellious or wicked and get thrown out of heaven. The term is not found in the bible but is utilized mostly in fictional literature.
No. Angels were created by God just like humans, animals, and nature. It would be idolatry to worship an angel.
There are two types of angels in the bible. They are the good angels and the fallen angels.
Revelation 21, makes reference to the New Heaven and Earth.
It doesn't appear in the Bible, but vaguely similar phrases appear in the Apocryphal books and the Koran. It could even be part of a poem.
When the disciples asked Jesus when is the time Jesus will come a second time. Then Jesus sais I do not know the time neither do the angels in heaven know the time only God knows the time.Another answer:The reference you seek is Mark 13:32 - But of that day and hour no one knows, not even the angels in heaven, nor the Son, but only the Father. [NKJV]