The assumption is niether confirmed nor denied by Scripture. It has been argued that, since God took Enoch and Elijah alive into heaven, then why wouldn’t he do that for Mary? The thing is, we know He took Enoch and Elijah, because Scripture makes it crystal clear. To argue that Mary is “more worthy” than them is to miss the point of why they were taken up alive. I can find nothing in Scripture to indicate that they were “worthy” of being taken alive into heaven.
To argue that Jesus would want to honor his mother in this way doesn’t really work. Take, for example, Matt 12:46-50; Jesus was teaching in a house, and some said “Your mother and brothers are here to see you.” Did Jesus rush out, bow down to her, and see what she wanted? Did He command the people to open a way for her to come in and see Him? No! Instead He pointed out that all who do the will of the Father are his mother, brother and sister.
I have heard it said that the woman of Rev 12:1 is Mary (and that this has always been the teaching of the Church). However, the earliest commentary I can find on Revelation (late 3rd, early 4th century) doesn’t mention Mary anywhere in relation to the woman, or the Ark in Rev 11.
Bottom line - the assumption is a tradition of men that, while it does not necessarily violate Scripture (that is, there is nothing in Scripture to affirm or deny this idea), should NOT be a dogma of the Church of Jesus Christ.
The Bereans and the Virgin Mary
When Paul preached the gospel to the Bereans, scripture records that “the
Bereans were of more noble character than the Thessalonians, for they received the message with great eagerness and examined the Scriptures every day to see if what Paul said was true” (Acts 17:11). It can be argued that the Bereans did not practice
sola scriptura as did the Thessalonians who actually rejected the gospel, but for the purposes of this discussion, the point will be conceded.
The Bereans searched the scriptures, but they would have searched forever without finding the name of Jesus of Nazareth connected in any way with the messiah whose advent was foretold in the Old Testament prophecies. In order to help the Bereans understand his gospel message, Paul
referenced and
interpreted the Old Testament passages which supported his teaching and made the necessary connection between the prophecies and the actual events in the life, death and resurrection of Jesus. Paul’s authoritative interpretation of the scriptures was required in order for the Bereans to correctly understand that Jesus was the messiah foretold in the Old Testament.
In light of this, is it really so different when the Catholic Church authoritatively teaches that Mary was assumed into heaven or that she is the Queen of Heaven? Like the Bereans, we can search in vain for explicit references to these things, and yet the Church, by virtue of its Apostolic Authority, has infallibly defined the doctrine of the Assumption by interpreting scripture. The verse, of course, is Revelation 12:1 which reads: “A great and wondrous sign appeared in heaven: a woman
clothed with the
sun,
with the moon under her feet and a crown of twelve stars on her head.” Here, the Church finds a clear reference to Mary, her bodily Assumption and her position as Queen of Heaven.
It is the authoritative Apostolic interpretation of the Catholic Church which helps us to see the truths in scripture that we, like the Bereans, may not find if left to our own devices.