The saints will be resurrected and bodily assumed into heaven in the future - the claim that Mary was assumed into heaven sometime before 90 A.D. lacks historic affirmation by John (for example) which you would think would be a noteworthy event.
from:
The Assumption of Mary
"Second, the Catechism teaches that Mary was taken to heaven when the course of her earthly life was finished. The Church does not declare whether Mary died and then was assumed into heaven or whether she was assumed before she died. It leaves open both possibilities. However, the majority of theologians and saints throughout the centuries have affirmed that Mary did experience death"
So I am not sure which of those two options you prefer - but neither is mentioned in the Bible as an event in the first century. You could argue that the Bible writers did not consider it worth mentioning even though Paul does mention things like books and papers and coats that need to be brought to him. It is up to you.
My point is that something that unusual would at least make "honorable mention" - and it does not in the first century.
Mary's assumption is mentioned in Scripture. Mary was in heaven when John had his vision, Apocalypse 11:19-12:5.
Both forms of it are recorded in the OT.
Enoch was bodily assumed into heaven without dying (and yes that event does make honorable mention into scripture)
Moses is said to have been bodily assumed into heaven after being resurrected in the book "The Assumption of Moses" quoted by Jude in the NT. And of course that also happens in the case of Christ - which also is worthy of mention by NT writers.
Fr. Longenecker lists the reasons for her assumption alot better than I could:
1. No other creature is united to Christ as Mary was united. Singularly protected from original sin, Mary becomes first-born of grace as Mother of your redemption:
Wisdom shall praise her own self, and shall be honoured in God, and shall glory in the midst of her people, And shall open her mouth in the churches of the most High, and shall glorify herself in the sight of his power, And in the midst of her own people she shall be exalted, and shall be admired in the holy assembly. And in the multitude of the elect she shall have praise, and among the blessed
she shall be blessed, saying: I came out of the mouth of the most High, the firstborn before all creatures: [
Ecclesiasticus 24:1-5]
2) Mary is Mother of God, Theotokos; the mother of Jesus Christ our Lord. The Blessed Virgin Mary is, as the Mother of God, she becomes our Spiritual mother. Among her titles is Mediatrix of All Graces. She facilitates our reconciliation and unity with Christ. She interposes herself between you and Christ, i.e. an intermediary. You say you don't need an intermediary, that doesn't mean they don't exist.
3) Crowning as Queen of Heaven is not separated from her assumption, she reflects the glory of Christ as the moon reflects the light of the sun.
The Queen Mother's position in the Kingdom is signified by her crown in the assumption. Give ye glory to the Lord your God... Say to the king, and to the queen: Humble yourselves, sit down: for the crown of your glory is come down from your head. (Jeremiah 13:16-18). Recall Bathsheba bowed humbly before King David, later it is King David that bows to the Queen Mother:
"Then Bethsabee came to king Solomon, to speak to him for Adonias: and the king arose to meet her, and bowed to her, and sat down upon his throne: and a throne was set for the king's mother, and she sat on his right hand" 1 Kings 2:19
In like manner the Queen Mother has a place of eminence in the Kings court. She rules with his authority. Nabuchodonosor King of Babylon carried away not only Joachim but the Queen Mother – primarily because of her prominence. (Cf. 2 Kings 24:12-15). We know Joachim's replacement is a young King Sedecias, his mother, Amital, was prominent enough to be mentioned in Scripture.
4) Her assumption is foretold in the procession of the Ark of the Covenant into Jerusalem, city of peace.
5) Assumption implies that she is risen by the power of Christ, contrasted with Christ’s Ascension which is done with His own power.
6) Mary’s assumption by the New Adam completes a certain redemptive healing for womankind. It was Jewish custom to hold womankind responsible for tempting Adam to eat of the forbidden fruit. Thinking of woman as the ‘weaker sex’ carried over into Christianity.
Ye husbands, likewise dwelling with them according to knowledge, giving honor to the female as to the weaker vessel, and as to the co-heirs of the grace of life: that your prayers be not hindered. [1 Peter 3:7]
The New Adam redeems all of mankind while Mary restores the honor of womanhood back to God through Jesus Christ, small but beneficial restoration equilibrium between the sexes. What better way to right a wrong caused by our act of rebellion. [Cf. Pope Pius X, E Supremi (The restoration of all things in Christ)]. Where Eve failed, Mary succeeds
7)Mary, as the first Christian shows the way, beckoning from antiquity to a perfection of faith in today’s reality.
8) Mary’s assumption shows how the final purity of the Church foreshadows our own resurrection, BODY and SOUL.
9) Eve turned away from God, Mary turns to God as a completely humble servant.
10) Mary leads the way for the assumption of all the Saints, demonstrating the unmerited and merited promise of Christ’s redemption. Those who follow Mary’s purity of love is poured over us at the baptismal fount in the name of the Father, Son and Holy Spirit.
JoeT