God decreed it. God is sovereign, not merely some chess master who is countering some move by His creation, as if His creation is some kind of co-sovereign with Him.
		
		
	 
Amen Brother
The proof:
Gal 3:22 But the scripture hath concluded 
all [Adam and all after him other than Jesus of Nazareth] 
under sin, that 
the promise by faith 
of Jesus Christ 
might be given to them that believe.
What promise? When was, the promise, made?
Titus 1:2 YLT upon hope of life age-during, which God, who doth not lie, 
did promise before times of ages,
From the very beginning they would be under sin in order for the promise to come through the faith of Jesus the Christ [ the anointed].
It was the means by which God was going to destroy the devil who held the power of the death.
I am going to ask again. 
@37818 
Rev 12:7-9 And there was war in heaven: Michael and his angels fought against the dragon; and the dragon fought and his angels, And prevailed not; neither was their place found any more in heaven. And the great dragon was cast out, that old serpent, called the Devil, and Satan, which deceiveth the whole world: 
he was cast out i
nto the earth, and his angels were cast out with him.
When? Why was the earth without form and void and darkness upon the face of the deep? Why was, that old serpent, in the garden where God put the man?