Sorry that is still a non sequitur. God could have just "made" himself and said "hey "I'm God, and for some odd reason you have to kill me so that I can forgive you for an error that I made in the first place."
Of course that only makes it even more obvious that some Christian beliefs are just crazy.
Jesus didn't just come to die for our sins, he also came to teach us how to live. Why didn't Jesus have an earthly father? - Quora
Jesus of Nazareth did not have an earthly father because he is the Son of God who exists from all eternity. He had an earthly incarnation that followed the experience of humanity in being born of a woman, who was thus his mother. He was raised by his mother and an adoptive father, experiencing the growth and discipline that both parents bring. See the gospels, particularly Luke and John.
The Foundations of the Virgin Birth
Now somebody might think, as we're going to talk about this this morning, somebody might think that this whole idea of the virgin conception just fell out of the air, just sort of a...just sort of arrived in somebody's imagination. After all, if all the Jewish leaders didn't believe it and if all of the people didn't believe that Messiah was going to be God, and that there was going to be some kind of miraculous virgin birth take place, if they killed Him for saying He was the Son of God, if this wasn't part of Messianic expectation and all of the...all of the elite students of the Old Testament and so forth didn't really anticipate this reality, shouldn't we believe that this was something concocted by people so as to cause Jesus to somehow rise above the crowd? And those who wanted to do that on His behalf really invented Him as the God-Man?
Well the answer to that question is not at all. In fact, there are some serious foundations to this reality, and I want to show you what those foundations are this morning. Three of them.
Number one... And by the way, we're going to go through several points in the next few weeks. We're going to go through the foundations, the fallacies, and the facts of the virgin birth. But for today: The foundations. Is this something new? Is this something invented? Or does this have a foundation? Three things give it a foundation.
Number one: The Old Testament, the Old Testament. Go back to Genesis 3 in your Bible. We mentioned this in a recent message and I want to go back to it because of its foundation character. You're in the first dawning of redemptive history here,creation in chapter 1, and in chapter 2. Then in chapter 3 man falls into sin and he'scursed and woman is cursed by having pain in child bearing and having conflict in marriage. Man is cursed by having to earn his bread by the sweat of his brow and he too has to engage in the conflict that marriage brings.
Then, of course, then God pronounces a curse on the serpent, who is Satan. And part of the curse on Satan in verse 14 is he's going to be cursed more than every other animal. And then in verse 15, going behind the animal to Satan himself, "I will put enmity between you and the woman." And then it says this, "And between your seed and her seed. He shall bruise you on the head and you shall bruise Him on the heel."
Now this is a very important prophecy. This is really the first prophecy next to the one where God said, "In the day you eat of the Tree of Life you'll die," that was a prophecy, too. But this is the first prophecy that looks forward to redemption. There's coming someone. This someone is called "her seed," and this one who is her seed will bruise the head of Satan, a crushing deadly blow. Who is that? Well only one person could effect the deadly crushing blow on the head of Satan. Who was it? It was Christ. Satan bruised His heel, Satan dealt a blow against Christ obviously in His death on the cross, but it was only a minor wound and out of that wound came redemption. And the risen Christ came forth out of the grave triumphant to give the fatal blow to Satan. That will be executed on him. It was won at the cross, it will be finally executed when he is sentenced and cast into the Lake of Fire forever.
Now notice that it says the One who will crush the head of Satan is called her seed. I just remark, a woman doesn't have a seed. When God gave a promise to Abraham,God said this: His seed would bless the families of the earth. “In his seed would all the families of the earth be blessed." The man has the seed. A woman doesn't have the seed. Her seed, how could a woman have a seed? Only one time did a woman ever have a seed of her own and that by the miraculous intervention of God.
The Jews, if they knew Genesis, should have seen that. And then there is Isaiah. Turn to Isaiah 7 chapter 7, verse 14. The Jews, we know, were always looking for a sign,always looking for some supernatural indicator, some supernatural event that would point to God working. And so in verse 14 Isaiah...of chapter 7, Isaiah says, "The Lord will give you a sign." You want a sign? Here it is. "A virgin will be with child and bear a Son." Wow! That will be a sign. That doesn't happen. That can't happen. That's impossible. And if that happens, that is a sign. Furthermore, "When she brings forth that child she will call His name Immanuel, God. El is “God,” immanu is “with us." When the child is born name Him "God is here." That's a pretty clear sign.