Jesus Before Baby Jesus
Do you think Adam and Eve were a failed experiment of God? Do you think the Law of Moses and the Tabernacle were just more failed creations of God? What about the Temple built by Solomon, or the second Temple built after the exile of the Jews to Assyria and Babylon? Or the Jewish people themselves? Do you think God gave it his best shot, but these things just didn’t work out the way he’d hoped?
If you think that way, then it might follow God conceived of the idea of Jesus a short while before he was born. That Jesus is just one more of God’s ideas that he hoped would work out better than some of his others. Few Christians would probably word these conclusions so crudely, but they probably do at least partially represent what many people unknowingly believe.
On the other hand, many Christians believe all of those events and people were part of God’s plan that existed before the beginning of time itself; and that God knew before the creation of the world that only Jesus could be the Savior of the World (Revelation13:8).