Some say that God and Satan are not real. Instead, there is a ying and yang that occurs in the universe. They say there is a battle between the forces of good and evil without any real “persons” behind the things that occur.
Yet, the Bible describes Satan who once was one of God’s angels but now is God’s enemy. Let’s take a look at what the Bible says about Satan and his fall from heaven.
ANGELOLOGY
The Fall of Satan

I. SATAN’S FIRST FALL[ref]Regarding the time of this fall, “Scripture is silent on this point, but it is clear that the fall of the angels occured before the fall of man, since Satan entered the garden in the form of a serpent and induced Eve to sin (Gen 3:1ff)” (Henry Thiessen, Lectures in Systematic Theology
, p. 136)[/ref]
I believe that the Bible describes two falls of Satan. One is a fall that has already occurred in history. The other one will occur during the future seven-year Tribulation on the earth. First, let’s look at the fall of Satan which has already occurred.