For years (almost 2000), theologians struggled with this. They made up some incredible teachings to explain how the blood of Jesus could be perfect, yet have come from an imperfect mother. Some changed the mother to be perfect to explain it away.
Then, a couple thousand years later, science catches up with God. The blood of the child does not mix with the mothers blood. Sometimes the blood of the 2 can actually be toxic to the other.
We had no need for fancy teachings and such, just trust God and wait for science to explain to us that the blood of the child is ‘different’ than the mothers - and in this case, His blood was fit for the ‘perfect sacrifice’.
But we have our traditions, and hang onto them in the face of (now) simple explanations.
I wonder if God has any other secrets He hasn’t let us in on yet...
Very interesting. Do you have a source so that I might read more?
Where did you get this hoopla from? The blood does mix, which is why sometimes it's fatal for a mother whose blood has the opposite Rh factor status, when the first child's blood sensitises her blood, and her body fights the second child due to her body learning that the child is "foreign". This is aside from the fact that fetal cells enter the mother's circulation, get lodged in different places in the mother's body and thrive, and likewise, mother's cells in the fetus. It's an open connection. It's why when a mother drinks alcohol whilst pregnant, the child gets it, too.
It's astonishing how much folks are willing to perform mental gymnastics to cram reality to bend around their dogma.