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Yes God knows what his meticulously designed creatures will certainly do in any situation that God also meticulously creates because Act 15:18 says...
“
Known unto God are all his works from the beginning of the world.”... and this includes his work of knitting together every individual creature in the womb!
For you formed my inward parts; you knitted me together in my mother's womb. I praise you, for I am fearfully and wonderfully made. Wonderful are your works; my soul knows it very well. - Psalm 139:13-14
God knows what a fallen creature will certainly do because God designed the creature to function a certain way in the fallen state.(ROM 5:19) Now because of Gods meticulous design of his creature he can
allow him to function in this fallen state, exactly as designed to do,
or he can
intervene and cause his creature to function differently! The amazing Grace of regeneration is one of these possible ways of intervention. Either way the outcome is, from beginning to end, meticulously determined by God!
God “has known” all of
his works from eternity past and that is why God is omniscient!
Gods “foreknowledge” is God knowing his work in the meticulous design of Lucifer, Adam, Eve, The Garden of Eden, The Tree of Life, The Tree of the Knowledge of Good and Evil, the timing and placement of all of them together ...“before” he works them!
Act 15:18 Known unto God are all his works from the beginning of the world.
All of this, meticulous orchestration, was what shaped Gods foreknowledge!
God
knew Lucifers strengths and weaknesses because he
designed him!
God
knew Adams weaknesses because he
designed him!
God
knew Eves weaknesses because he
designed her!
God
knew the definite outcome when
allowing Satan into the Garden!
God
knew the consequences of the fall because he
designed the consequences! (see Rom 5:18-19)
Adam played his part
precisely how God
designed him to play his part!
There was
no “possibility” of any other outcome
because God is in control...
not man!
God “foreknows” because...“
Known unto God are all his works from the beginning of the world.” - Acts 15:18
Isa 14:24 The LORD of hosts hath sworn, saying, Surely as I have thought, so shall it come to pass; and as I have purposed, so shall it stand:
Eph 1:11 In whom also we have obtained an inheritance, being predestinated according to the purpose of him who worketh all things after the counsel of his own will:
Psa 33:11 The counsel of the LORD standeth for ever, the thoughts of his heart to all generations.
Psa 115:3 But our God is in the heavens: he hath done whatsoever he hath pleased.
Psa 135:6 Whatsoever the LORD pleased, that did he in heaven, and in earth, in the seas, and all deep places.
Deu 32:39 See now that I, even I, am he, and there is no god with me: I kill, and I make alive; I wound, and I heal: neither is there any that can deliver out of my hand.
1Sa 2:6-8 The LORD killeth, and maketh alive: he bringeth down to the grave, and bringeth up. The LORD maketh poor, and maketh rich: he bringeth low, and lifteth up. He raiseth up the poor out of the dust, and lifteth up the beggar from the dunghill, to set them among princes, and to make them inherit the throne of glory: for the pillars of the earth are the LORD'S, and he hath set the world upon them.
Job 9:12 Behold, he taketh away, who can hinder him? who will say unto him, What doest thou?