“And knew her not till she had brought forth her firstborn son: and he called his name JESUS.”
King James Version (KJV)
1:25 He knew her not, till after she had brought forth - It cannot be inferred from hence, that he knew her afterward: no more than it can be inferred from that expression, #2Sam 6:23|, Michal had no child till the day of her death, that she had children afterward. Nor do the words that follow, the first - born son, alter the case. For there are abundance of places, wherein the term first born is used, though there were no subsequent children. #Luke 2:7|.
Mt 1:25 Knew her not. A Hebrew form for conjugal intercourse. The language of the verse does not imply the perpetual virginity of Mary.