These are just myths created to falsify who Mary really was. Where are these numerous scriptures bear that out when studied carefully? Where -- anywhere! -- in the Bible does it say that other siblings were born to Joseph before his marriage to Mary? Where -- anywhere! -- in the Bible does it say that Mary's womb was forever withheld from any other children after giving birth to Jesus?
Did you know that "Mary" -- actually Miriam -- was from the Western hemisphere and was transported by Noah's ark across the ocean to bear Jesus in Bethlehem?
Elizabeth, Mary's “cousin”, was never called Mary's “sister” in Scripture. The same applies to these “brothers” and “sisters” of Jesus, of their father Joseph. Not once in Scripture are they called “cousins” of Jesus. Thus, we can eliminate that option.
Scripture gives us clues, when we are so inclined to ask of God, asking for the Holy Spirit to teach us, and to pray for guidance in these things, that will be connected to show us the way to the answer.
The Scripture does not make any mention of Mary siring any other children after Jesus, or other than Jesus. This would sort of be an argument from silence, but not really as there are minute indications in Scriptures, which are helpful none-the-less, as we shall see further which demonstrates that conclusion.
Ok, now, we can confirm that Mary was indeed a 'virgin' and had no children before Jesus by th following texts: Isaiah 7:14; Matthew 1:18,23,25; Luke 1:27, 2:7, which helps to confirm the meaning 'firstborn' in reference to Jesus.
These texts are clear that Mary had no children before Jesus, for she was "virgin".
Nowhere, in scripture, is it recorded that Mary had a "second", "third" child and so on. Many incorrectly read those things into the text, simply based on the words "firstborn" and "brother(s)" and "sisters" of Jesus. However, the text never gives those children the designation of being the children of Mary, even once. They are called "brother(s)" and "sisters" of Jesus, never the sons and daughters of Mary. Thus they can only be the 'brothers' and 'sisters' of Jesus by Mary's marriage to Joseph. They are all older (humanly speaking) than Jesus, as we shall see.
Notice, "thy brethren", as in Matthew 12:47 and "his brethren", as in Matthew 13:55 and see also Mark 6:3.
These are not "cousins", since the Holy Scriptures, know how to designate relatives, see:
"daughter in law" (in reference to Sarai/Sarah), Genesis 11:31.
"son in law" (in reference to Lot's daughter's husbands), Genesis 19:12.
"daughter in law" (in reference to Tamar), Genesis 38:11.
"daughter in law" (the son's wife), Leviticus 18:15.
"father in law" (in reference to Moses' wifes' father), Numbers 10:29.
... &c. ...(yet a "son in law" can also be considered a "son" (as David to Saul through his wife, Michal, 1 Samuel 18:18,21, 26:17) and so also a "daughter in law" be a "daughter" (a in the case of Ruth and Naomi, Ruth 1:22, 2:2,8,20,22, 3:1,16,18, 4:15 ), and also as a term used of the elder to a younger, Ruth 3:10,11.)
"thy cousin Elizabeth" (in reference to Mary), Luke 1:36.
"her neighbours and cousins" (in reference to Mary), Luke 1:58.
"daughter in law, ... mother in law" (in general), Mathew 10:35; Luke 12:53.
"father in law" (to Caiphas), John 18:13.
Mary is never called the 'sister' of Elizabeth.
Now let's take a look at some other details.
One of those, is when we come to the event of the Cross itself in the Gospel accounts, we see that Jesus entrusts Mary into the hands of John the Apostle, and not to any previous family members who were born of Joseph previously, which would have been their duty to do, in taking care of a widower like Mary, if they were her actual blood children.
“When Jesus therefore saw his mother, and the disciple standing by, whom he loved, he saith unto his mother, Woman, behold thy son!” John 19:26
“Then saith he to the disciple, Behold thy mother! And from that hour that disciple took her unto his own
home.” John 19:27
Another, is when Jesus previously had stated, that he had no inheritance on this earth to speak of, and therefore was not the eldest, by any means, but like King David before Him, was the youngest, even though Mary's “firstborn”, and would have received only from His father a portion which remained after being divided among the “sons” of Joseph, and since his earthly 'father' [not by blood/flesh, but by care/commission from Heaven] was deceased, His inheritance could only come from His Heavenly Father.
“And Jesus saith unto him, The foxes have holes, and the birds of the air
have nests; but the Son of man hath not where to lay
his head.” Matthew 8:20
“And Jesus said unto him, Foxes have holes, and birds of the air
have nests; but the Son of man hath not where to lay
his head.” Luke 9:58
The “brothers” of Jesus, being older, from Joseph, at a point in the Gospel record, convince Mary that Jesus was possessed of devils, for they did not follow Jesus, nor believe on Him, but rather they had listened to and believed the Pharisees, which were accusing Him of being used of Satan to cast out Satan, and since they were older, they were using their authority to convince Mary to get Jesus to cease what He had been sent to do:
“But when the Pharisees heard
it, they said, This
fellow doth not cast out devils, but by Beelzebub the prince of the devils.” Matthew 12:24
“While he yet talked to the people, behold,
his mother and his brethren stood without, desiring to speak with him.” Matthew 12:46
“Then one said unto him, Behold, thy mother and thy brethren stand without, desiring to speak with thee. “ Matthew 12:47
“And the multitude cometh together again, so that they could not so much as eat bread.” Mark 3:20
“And when his friends heard
of it, they went out to lay hold on him: for they said, He is beside himself.” Mark 3:21
“And the scribes which came down from Jerusalem said, He hath Beelzebub, and by the prince of the devils casteth he out devils.” Mark 3:22
“Because they said, He hath an unclean spirit.” Mark 3:30
“There came then his brethren and his mother, and, standing without, sent unto him, calling him.” Mark 3:31
“And the multitude sat about him, and they said unto him, Behold, thy mother and thy brethren without seek for thee.” Mark 3:32
“Then came to him
his mother and his brethren, and could not come at him for the press.” Luke 8:19
“And it was told him
by certain which said, Thy mother and thy brethren stand without, desiring to see thee.” Luke 8:20
At another time, the “brothers” spoke to Jesus in tones of authority, something only which elders would do to their youngers, declaring His path before Him, apart from The Father's instruction:
“His brethren therefore said unto him, Depart hence, and go into Judaea, that thy disciples also may see the works that thou doest.” John 7:3
All of this, would point to God, lovingly, preserving from Mary and us, from the utter and total confusion it would have been, for the people of that day and of now, in considering any further children of Mary, as being also God, or Messiah, or Saviour, or etc, or thinking that some flesh/blood line was more pure or holy than another, or of entrusting the future of the religion of Christianity to a blood line of Mary, instead of the spiritual line of Christ. Think, briefly, for a moment, of how that would have been, if Mary had other children, or that were around, or still existed, once Christ ascended. Would they have looked Heavenward, or to flesh and blood, knowing the heart of men? The Wisdom of God is indeed Wise.
A lesson we can learn, from these things, is that we ought to remain focused upon Christ Jesus, rather than upon trivial things, though truthful they may be, and to be followers of Christ, as James, a brother of Christ, came to be [James 1:1]. Satan will always attempt to cause unnecessary and harmful division amongst the people of God, to get them to sin, to lose their focus of mission from Christ Jesus, etc.
If others, choose not to accept any of these things [for people are free to choose], and reject, and/or explain away the Scriptural accounts, or the Testimony of Jesus, which reveal the “proof” of them, -- have compassion upon them, and treat them kindly as brother or sister, not desiring to stir up strife over it, but praying for them and yourself, and us, that we may finally, and all, be of the same mind, which mind is in Christ Jesus.
The powerful lesson is, that Christ is no respecter of persons [Acts 10:34], neither of blood/flesh [Galatians 3:28; Colossians 3:11], but if we accept Him, then we are truly His real “brothers” and “sisters” [Matthew 12:49-50; Mark 3:34-35; Luke 8:21]. He can bring us from Enmity to Him, into Enmity with Sin! Amen!