The Messiah would be born of a virgin (Mary).
OT Prophecy NT Fulfillment
Jeremiah 31:22
How long wilt thou go about, O thou backsliding daughter? For the LORD hath created a new thing in the earth, A woman shall compass a man.
Matthew 1:18–20
[18] Now the birth of Jesus Christ was on this wise: When as his mother Mary was espoused to Joseph, before they came together, she was found with child of the Holy Ghost.
[19] Then Joseph her husband, being a just man, and not willing to make her a publick example, was minded to put her away privily.
[20] But while he thought on these things, behold, the angel of the Lord appeared unto him in a dream, saying, Joseph, thou son of David, fear not to take unto thee Mary thy wife: for that which is conceived in her is of the Holy Ghost.
Tanakh – Neviim – Jeremiah 31:22
How long wilt thou turn away coyly, O thou backsliding daughter? For HaShem hath created a new thing in the earth: a woman shall court a man.
Hebrew OT – Jeremiah 31:22
[31:22] עַד־מָתַי תִּתְחַמָּקִין הַבַּת הַשּׁוֹבֵבָה
כִּי־בָרָא יְהוָה חֲדָשָׁה בָאָרֶץ
נְקֵבָה תְּסוֹבֵב גָּבֶר