That’s reasonable. I disagree, but it’s reasonable. It could have happened.
And the Immaculate Conception? How did you get that one again?
Of course I don’t believe in original sin anyway
First, let’s look at God’s plan for the ark of the covenant.
Exo 25:11 And thou shalt overlay it with the purest gold, within and without; and over it thou shalt make a golden crown round about:
Exo 25:12 And four golden rings, which thou shalt put at the four corners of the ark: let two rings be on the one side, and two on the other.
Exo 25:13 Thou shalt make bars also of setim wood, and shalt overlay them with gold.
Exo 25:14 And thou shalt put them in through the rings that are in the sides of the ark, that it may be carried on them:
Exo 25:15 And they shall be always in the rings, neither shall they at any time be drawn out of them.
Exo 25:16 And thou shalt put in the ark the testimony which I will give thee.
Exo 25:17 Thou shalt make also a propitiatory of the purest gold: the length thereof shall be two cubits and a half, and the breadth a cubit and a half.
Exo 25:18 Thou shalt make also two cherubims of beaten gold, on the two sides of the oracle.
Exo 25:19 Let one cherub be on the one side, and the other on the other.
Exo 25:20 Let them cover both sides of the propitiatory, spreading their wings, and covering the oracle, and let them look one towards the other, their faces being turned towards the propitiatory wherewith the ark is to to be covered.
Exo 25:21 In which thou shalt put the testimony that I will give thee.
God knows His plan for all things. He knew Mary before she was even born, He also knew she would be the ark of the new and everlasting covenant. Mary was addressed as, “full of grace”.
Luk 1:28 And the angel being come in, said unto her: Hail, full of grace, the Lord is with thee: blessed art thou among women.
There was another described as ‘full of grace’.
**Joh 1:14 And the Word was made flesh and dwelt among us (and we saw his glory, the glory as it were of the only begotten of the Father), full of grace and truth. **
Surely God wanted a spotless place for the Word to become flesh. We know scriptures tell us God is perfect, He would have no less for a place to become flesh.
Mat 5:48 Be you therefore perfect, as also your heavenly Father is perfect.