Man having fallen into the realm of Sin and Death in sinful rebellion against his Creator.
God who is rich in mercy designs to save a multitude out or fallen mankind.
He elects the objects of saving love and ordains all the means to accomplish that designed redemption.
Not one more, or not one less person is going to be saved that those the Father has given to the Son.
Were, you ( singular ), given to the Son before or after you were born of your mother?
Why did the man (singular) sin?
Rev 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.
Did it have anything to do with that one above?
He that committeth sin is of the devil;
for the devil sinneth from the beginning.
Was the devil a sinner before the man was created?
Was the man created because the devil was a sinner with sinful works?
And without controversy great is the mystery of godliness: God was
manifest in the flesh, <Why?) justified in the Spirit, seen of angels, preached unto the Gentiles, believed on in the world, received up into glory. 1 Tim 3:16
Forasmuch then as the children are partakers of
flesh and blood,
he also himself likewise took part of the same; that through death
he might destroy him that had the power of death, that is,
the devil; Heb 2:14
For this purpose
the Son of God was manifested, that
he might destroy the works of the devil.
Does this effect the theology of the OP? I am not sure but think maybe.