Rom 8:29 For those God foreknew he also predestined to be conformed to the image of his Son, that he might be the firstborn among many brothers and sisters.
Discussion
God is familiar with those, "fore-knowing" whom He intends to redeem to Himself because God created them for His purpose, not because God reviewed their actions and determined them worthy.
None of Man's actions are worthy of God, and no man is able to come to Christ without God first transforming them.
Therefor, God foreknew them in intimate familiarity because they belong to Him, not because God likes who they became in themselves, but because God has a purpose unto Himself.
See Reformed exposition on Rom 8:29 here: https://grok.com/share/c2hhcmQtMi1jb3B5_bb2245d8-bfd9-46c2-8450-2d884014bab5
1 Peter 1:20 – Christ was “foreknown before the foundation of the world.”
God didn't review how Christ would perform and approve of it, He "created' Christ (instantiate Himself) in order for the preordained purpose of redeeming God's predestined people to Himself.
God foreknew Christ the same way God foreknew God's elect people: familiarity due to creative purpose and intent, not due to performance.