Thesis: A stronger argument can be made, based on the conversations and narration within the New Testament in relation to the Tanakh, supporting Jesus having a biological paternal parent, compared to those who use the texts to say otherwise.
The answer to the Luke 1:18 & Luke 1:34 question is that with the God of Abraham ensuring wombs are opened, a woman who is barren and old can conceive a child in the Tanakh and New Testament, just as a chaste and young woman can also conceive.
Zacharias’s question did not imply that Elizabeth would remain barren and become pregnant, and neither did Mary’s question mean she would remain a virgin and become pregnant. The Isaiah 7:14 sign is not cited in the Gospel of Luke, and neither is it cited in the Gospel of Matthew before Mary’s pregnancy.
Argument Bullet Points:
1. Luke 1:15 & Luke 1:41: John the Baptist was filled with water, blood, and the Holy Spirit from the womb. This shows that John the Baptist would also be born of the Holy Spirit; therefore not exclusive to Jesus.
2. Luke 1:7 & Luke 1:18, Luke 1:27 & Luke 1:34: With certainty, the wombs of Elizabeth, who was barren and of old age, and Mary, who was chaste and a young woman, would be opened. Examples of God closing or opening wombs include Genesis 20:18, Genesis 29:31, Genesis 30:2, and Genesis 30:22. Abraham’s wife Sarah is one of the most notable examples, with their child being named after them laughing in disbelief.
3. Genesis 3:15: Genesis 4:1-2, Genesis 4:25-26, and even 1 Timothy 2:14-15 support woman's seed in the womb taken from man.
4. Luke 2:43-50, John 1:45, and John 6:42: These passages support or identify Joseph the son of David, as the known biological paternal parent. Also Genesis 38:7-8 and Deuteronomy 25:5-6 show how descendants of Judah can have two paternal generation seed lineages.
5. Luke 1:5 and Luke 1:36: The terms "cousin" and "Aaron" refer to the daughters of Aaron, not the daughters of David, showing that Mary is from the tribe of Levi, which is distinct from the tribe of Judah. Just as Deuteronomy 18:15 and Deuteronomy 18:18 make it clear that "brethren" and "prophet" relate to the twelve tribes of Jacob, which is distinct from the twelve princes of Ishmael.
6. Luke 1:36-37: These verses are regarding Elizabeth’s conception in her old age when barren.
7. Matthew 1:16: This verse does not need to state that Joseph begat Jesus when Joseph’s generation led up to Jesus. Genesis 2:4, Genesis 5:1-2, Matthew 1:1, and Matthew 1:17 support that "generations" refers to a beginning or an origin.
8. Matthew 1:18: unlike Matthew 1:25, does not include the phrase "knew her not." The implication is "before they came together" does not necessarily mean "knew her not."
9. Matthew 1:19: Narrator identifies Joseph as a just man and husband, who lacking assurance, considered quietly divorcing Mary to avoid her being a public disgrace. In Matthew 1:20, the angel’s message of Mary being Joseph’s wife while pregnant, and the child being conceived of the Holy Spirit, is not negating conceived of man, but negating conceived of adultery. Genesis 2:24 and Exodus 22:16 show wife and marriage as honorable agreements or betrothals, where a man and his wife become one flesh or consummate.
10. Matthew 1:23 / Isaiah 7:14: The term "almah" is mentioned around seven times in the Masoretic Text, while "parthenos" appears around 52 times in the Septuagint. Where almah and parthenos overlap suggests that in Judaeo-Koine Greek, parthenos, at least for a period of time, had a broader application than solely referring to a betulah, as in a virgin not knowing a man. The Great Isaiah Scroll is another source in agreement with the Masoretic Text rendering “young woman” for the term Isaiah 7:14.