Quote
hisalone said:
Since the propitiation was not yet made, that means she was not yet regenerated by the Spirit.

I think this kind of thought is very limiting to one's perception of God, who is eternal and exists outside of time. The propitiation, for Him and for His people, occured "before the foundation of the world," and therefore the full weight of it's efficacy has been extenant before the foundation of the world! Those who God redeemed before Christ were redeemed in exactly the same way they are today: By grace, through God-given faith, resulting from regeneration by the Spirit.