What would have happened if Eve had not been in Adam?

Les explains that Eve had to be in Adam even before she was created, not as the woman is understood physically, but the very concept of the woman had to be in Adam. Otherwise God would have had to provide a separate Savior and Redeemer for the female of the species rather than just one. Les uses the analogy of angels: Scripture gives no instance of angels having an opportunity for salvation; if an angel rebels or falls, he is done, because every angel is a specific creation. If God provided a plan of redemption for angels, He would need as many Saviors or Redeemers as He has angels, which would be ridiculous. Bringing that into the human realm, Les says that if Eve had not been in Adam from the very beginning so that Adam could be the federal head of the human race, there would not have been the need for only one Redeemer. Adam is the federal head of the whole human race, men and women. This is why Genesis 1:27 emphasizes that even though Eve is not yet on the scene, God created him male and female, He created them. Genesis 5:2 gives a recap and summarization of this.