Matthew 1:24-25: And Joseph rising up from sleep, did as the angel of the Lord had commanded him, and took unto him his wife. And he knew her not till she brought forth her firstborn (Gk. prototokon) son: and he called his name Jesus. (Douay-Rheims)
ARTICLE #1: https://www.catholic.com/tract/brethren-of-the-lord
EXTRACT FROM THE ARTICLE:
“Fundamentalists insist that “brethren of the Lord” must be interpreted in the strict sense. They most commonly make two arguments based on Matthew 1:25: “[A]nd he did not know her until (Greek: heos, also translated into English as “till”) she brought forth her firstborn son.” They first argue that the natural inference from “till” is that Joseph and Mary afterward lived together as husband and wife, in the usual sense, and had several children. Otherwise, why would Jesus be called “first-born”? But they are using a narrow, modern meaning of “until.” In the Bible, it means only that some action did not happen up to a certain point; it does not imply that the action did happen later.
Consider this line: “Michal the daughter of Saul had no children till the day of her death” (2 Sam. 6:23). Are we to assume she had children after her death?
There is also the burial of Moses. The book of Deuteronomy says that no one knew the location of his grave “until this present day” (Deut. 34:6, Knox). But we know that no one has known since that day either.
You get the idea—nothing can be proved from the use of the word “till” in Matthew 1:25. Recent translations give a better sense of the verse: “He had no relations with her at any time before she bore a son” (New American Bible); “He had not known her when she bore a son” (Knox).
Fundamentalists claim Jesus could not be Mary’s “first-born” unless there were other children that followed him. But this shows ignorance of the way the ancient Jews used the term. For them it meant the child that opened the womb (Ex. 13:2; Num. 3:12). The first male child of a marriage was termed the “first-born” even if he turned out to be the only child.”
ARTICLE #2: https://www.catholic.com/magazine/print-edition/the-case-for-marys-perpetual-virginity
EXTRACT FROM THE ARTICLE:
“Scripture’s statement that Joseph “knew [Mary] not until she brought forth her firstborn” would not necessarily mean they did “know” each other after she brought forth Jesus. Until is often used in Scripture as part of an idiomatic expression similar to our own usage in English. I may say to you, “Until we meet again, God bless you.” Does that necessarily mean after we meet again, God curse you? By no means. A phrase like this is used to emphasize what is being described before the until is fulfilled. It is not intended to say anything about the future beyond that point. Here are some biblical examples:
- 2 Samuel 6:23: And Michal the daughter of Saul had no child to (until) the day of her death. (Does this mean she had children after she died?)
- 1 Timothy 4:13: Until I come, attend to the public reading of scripture, to preaching, to teaching. (Does this mean Timothy should stop teaching after Paul comes?)
- 1 Corinthians 15:25: For he (Christ) must reign until he has put all his enemies under his feet. (Does this mean Christ’s reign will end? By no means! Luke 1:33 says, “he will reign over the house of Jacob forever and of his kingdom there shall be no end.”)
In recent years, some have argued that because Matthew 1:25 uses the Greek words heos hou for “until” whereas the texts I mentioned above from the New Testament use heos alone, there is a difference in meaning. The argument goes that Heos hou indicates the action of the first clause does not continue. Thus, Mary and Joseph “not having come together” would have ended after Jesus was born.
The problems with this theory begin with the fact that no available scholarship concurs with it. In fact, the evidence proves the contrary. Heos hou and heos are used interchangeably and have the same meaning. Acts 25:21 should suffice to clear up the matter: “But when Paul had appealed to be kept in custody for the decision of the emperor, I commanded him to be held until (Gk. heos hou) I could send him to Caesar.”
Does this text mean that Paul would not be held in custody after he was “sent” to Caesar? Not according to the biblical record. He would be held in custody while in transit (see Acts 27:1) and after he arrived in Rome for a time (see Acts 28:16). The action of the main clause did not cease with heos hou.”