The Genealogy of Jesus [View all]

You can't make this stuff up.
Oh wait, they did.

https://www.ligonier.org/learn/devotionals/tracing-genealogy-jesus/

The New Testament provides two genealogical tables for Jesus, one by Matthew and one by Luke. These tables differ at significant points. Matthew was writing for a Jewish audience and Luke for a Gentile audience. Matthew was concerned to show that Jesus legally descended from David and was therefore a descendant of Judah to whom the messianic kingship was promised. Matthew treats the legal descent of Jesus and limits the lists to three groupings of fourteen generations, allowing himself to make omissions.

Luke follows the natural descent with greater detail. He takes the list back to Adam, as it was a central theme in his Gospel to set forth the universality of the gospel. Jesus is indeed the Son of Abraham and the Son of David, but He is also the new Adam who comes to redeem not only Israel but men and women from every tribe and nation.
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I'm still confused. So is this Mary's lineage they are talking about? Joseph made no contribution to the ancestry.

And who needs Adam or Abraham? Isn't Jesus supposed to be the son of God? You can't go further back then that.