I think you're getting off topic here. The point is, regardless of what we think of Baptism, that when Christians are regenerated they are at that time sinless. The Catholics have an explanation for how Mary was able to be in this state prior to Christ. Have you?
Is there any Scriptural support for these beliefs?
In so many words, no. Then again, the teachings of the Trinity are not in "so many words" either. You do believe in the Trinity, don't you?
I don't believe the Bible anywhere denies our ability to make reasoned conclusions from the material it reveals.
The fact of the matter is that the Scriptures single out only ONE person as being sinless. This had to be made explicitly clear, because if Jesus was not sinless then his sacrifice would be ineffective.
Jesus had to be blameless, yes. But the real point is that Jesus had to be God, the Infinite One. An infant is sinless, but crucifying an infant is not going to redeem the world.
In the narrative of the NT, Mary is seen as being on the same level as the other faithful followers of Jesus.
That's one way to read it. the way that wants to pull Mary down and make it seem as if Jesus has no regard for His mother.
The other way is that Jesus is telling us if we do the will of the Father we will be considered just like His mother.
Not if the supposed "special strength" is in conflict with the clear witness of the Bible, i.e. "All have sinned..."
Do you really believe "all have sinned" allows for noe exceptions? How do you define sin? Can infants and toddlers sin? What about the mentally handicapped?
SD