My point isn't to argue that Mary had sex before the birth of Jesus. My point is that she was a young teenager and MARRIED when Jesus was born. No matter how Catholics like to quibble about this issue, the Bible clearly indicates Mary subsequently had other children following the birth of Jesus.
And Joseph awoke from his sleep and did as the angel of the Lord commanded him, and took Mary as his wife, but kept her a virgin until she gave birth to a Son; and he called His name Jesus.
"Matthew 1:24-25" wrote:
Yes, it doesn't directly state that he took her virginity after she gave her birth, but that's obviously the intent of the statement. To argue otherwise is to torture it beyond all realm of sense. Everyone
knows what married couples do, particularly in a culture like the Middle East in which having children is considered not only an honor but a duty. Mary would have abstained for her six weeks per Hebrew law, then undertaken her purifying ablutions, after which they would surely have had normal relations. After all, Joseph and Mary were already betrothed (Matthew 1:18), so it's safe to assume the (probably) 17-year-old Joseph was looking forward to making love to the girl he liked. Some people argue that because Joseph was dead at the Crucifixion (implied by the fact that he wasn't present at the Cross and Jesus commits his mother into the care of his beloved disciple John) indicates he was much older than Mary and therefore his marriage to Mary was probably a second marriage. But that is pure speculation and obviously not based on any textual evidence.
Catholics like to say that in Semitic languages, the word translated as "brother" can also mean "cousin," so the "brothers of Jesus" mentioned in Matthew 13:5 and Mark 6:3 must have been his cousins or at most half-brothers. But again, this is pure speculation and involves ignoring the clear meaning of the text in favor of doctrinal biases.
To quibble, furthermore, that in a Middle Eastern culture, if these men had truly been Jesus' brothers, they would never have taunted him (Mark 3:31; John 7:3-4) is an even weaker argument in my opinion. The people least likely to believe that someone is a great leader -- much less the Son of God -- are one's own siblings. And we all know how much siblings tend to bicker. If anything, the fact they didn't believe in him strengthens the idea that they were his true siblings. As Jesus himself pointed out, a prophet is not without honor except in his own city, where people know him best. Familiarity does tend to breed contempt.
Either way, the point stands: Mary was a young teenager who almost certainly was having sex shortly after the birth of Jesus.
It's a hell of a lot more logical to ask people to wait for marriage when they're going to have a culturally acceptable sexual outlet at 14 than when they're going to have to wait till 25 or later.