It is not I who am example mental deficiency here (though i certainly am no genius) but you, who reasons that the mention in Scripture of a source as providing material means that all they say must be Scripture.
Thus, since Paul quoted from the Cretan poet Epimenides (Titus 1:12) and from the pagan poets Epimenides and Aratus in his speech at Athens (Acts 17:28) then all they said must be considered a wholly inspired Scripture.
As must the Book of the Wars of the Lord, (Numbers 21:14), the Book of Samuel the Seer, the Book of Nathan the Prophet, and the Book of Gad the Seer, (1 Chronicles 29:29) the Acts of Rehoboam and the Chronicles of the Kings of Judah, (1 Kings 14:29) and the book of Enoch. (Jude 1: 14-15) But which Scripture can include true statements from such, this does not mean they are wholly inspired Scripture.
And which includes books that God did not care to preserve, which appears to be the case with the book of Jasher. There is a book called “The Book of Jasher” today, although it is not the same book as mentioned in the Old Testament. It is an eighteenth-century forgery that alleges to be a translation of the “lost” Book of Jasher by Alcuin, an eighth-century English scholar.
There is also a more recent book titled “The Book of Jashar” by science fiction and fantasy writer Benjamin Rosenbaum. This book is a complete work of fiction. Another book by this same name, called by many “Pseudo-Jasher,” while written in Hebrew, is also not the “Book of Jasher” mentioned in Scripture. It is a book of Jewish legends from the creation to the conquest of Canaan under Joshua, but scholars hold that it did not exist before A.D. 1625. In addition, there are several other theological works by Jewish rabbis and scholars called “Sefer ha Yashar,” but none of these claim to be the original Book of Jasher. https://www.gotquestions.org/book-of-Jasher.html
Moreover, the reason why there are "forgotten books" versus established ones is because, apart from conciliar decrees, both men and writings of God were established as being so essentially due to their unique heavenly qualities and attestation, complementary and in conflation with what already has been established. Which leaves others in the dust, except among a few eccentrics. Some contend that Eugene Swedenborg was of God and his writings were Scripture, and others that the books Enoch was, but both fail conflation with and are contrary to Scripture.
and also Paul who writes in Timothy that ALL scripture/texts should be used to understand the Word - paraphrasing.
And Paul never referenced Jasher or other books as Scripture which those who sat in the seat of Moses recognized as being established Scripture, and which he said were "wholly inspired of God," not partially.
I call you a "genius" and you call me a "mental deficient". A fine example of the real "Christian" fruit you bare, no doubt. ;)
As for the question before us, the relative ages of Mary and Joseph, I provide another text. But first, a short word from someone concerning these additional scriptures/texts:
“…the word apocrypha as it is a word that is greatly misunderstood. It comes from Greek and is formed from the combination of apo (away) and krytein (hide or conceal). Thus, it signifies that which is ‘hidden away’ or ‘concealed’. Apocryphan is the singular form and apocrypha the plural. These words are used to describe the nature of a certain body of ancient religious writings. The word apocrypha, like many other words has undergone a major change in meaning throughout the centuries. With regard to these ancient books, the word apocrypha ORIGINALLY MEANT A TEXT TOO SACRED AND SECRET TO BE IN EVERYONES HANDS. It needed to be hidden away and reserved for the spirituality mature. It was a term of dignity and respect. To those who revered the apocryphal books, they were ‘hidden’ because they contained teachings that were too sacred to be revealed except to the initiated.” From Forgotten Women of God By Diana Webb page xiv
You can find more information about apocryphal books here:
https://discover-the-truth.com/2013/09/30/marriage-of-mary-to-joseph-the-carpenter/
Make sure you review the information concerning the book of Hebrews, or research it online, you might find it interesting.
For another source of evidence of the ages of Mary and Joseph, please examine History of Joseph the Carpenter.
The History of Joseph the Carpenter is one of the texts within the New Testament apocrypha concerned with the period of Jesus' life before he was 12. The most interesting thing about the story is that it is narrated by Jesus himself in a narrative told to his disciples while they were on the Mount of olives.
The story in one concerning the life of Joseph, his stepfather. In it, Jesus agrees with Mary's continued virginity. The text explains the relationship between Jesus and his brothers and sisters by stating that Joseph had four sons named Judas, Justus, James, and Simon and two daughters called Assia and Lydia by a previous marriage.
At age 90, after the death of his first wife, Joseph is given charge of the twelve year old virgin Mary. She lives in his household raising his youngest son James 'the less' along with Judas, until the time she is to be married at age 14.
We must remember that marriage at that time was not like it is today. Marriage had more to do with consummation than living arrangement. Mary may have lived with Joseph at age 12, but they would not have been considered married until they had sex. The exception would be when a man decided to keep a woman as his wife but keep her virginity.
After this basic background, the text proceeds to paraphrase the Gospel of James, stopping at the point of Jesus' birth. The text states that Joseph was miraculously blessed with mental and physical youth, dying at the age of 111.
Joseph's death takes up approximately half of the work. At the conclusion of the text, Jesus affirms that Mary remained a virgin throughout her days by addressing her as "my mother, virgin undefiled." The words “virginity” and “undefiled” in this context must relate to sexual relations and not to the traumas of childbirth.
The Text says "And the holy apostles have preserved this conversation, and have left it written
After this basic background, the text proceeds to paraphrase the Gospel of James, stopping at the point of Jesus' birth. The text states that Joseph was miraculously blessed with mental and physical youth, dying at the age of 111. Joseph's death takes up approximately half of the work. At the conclusion of the text, Jesus affirms that Mary remained a virgin throughout her days by addressing her as "my mother, virgin undefiled." The words “virginity” and “undefiled” in this context must relate to sexual relations and not to the traumas of childbirth. The Text says "And the holy apostles have preserved this conversation, and have left it written
The Encyclopedia of Lost and Rejected Scriptures: The Pseudepigrapha and Apocrypha (Kindle Locations 25540-25551). Fifth Estate. Kindle Edition.
A link to the book "The History of Joseph the Carpenter" can be found here: http://www.masseiana.org/history_of_joseph.htm