The author begins with Jesus' genealogy in order to show that he is a descendant of King David and of Abraham. The genealogy continues through [Matthew 1:17](./15.md).
There were many generations between Jesus, David, and Abraham. Here "son" means "descendant." AT: "Jesus Christ, a descendant of David, who was a descendant of Abraham"
Sometimes the phrase "son of David" is used as a title, but here it seems to be used only to identify Jesus' ancestry.
# Abraham was the father of Isaac
"Abraham became the father of Isaac" or "Abraham had a son Isaac" or "Abraham had a son named Isaac." There are different ways you could translate this. Whichever way you translate it here, it would be best to translate it the same way throughout the list of Jesus' ancestors.
# Isaac the father ... Jacob the father
Here the word "was" is understood. AT: "Isaac was the father ... Jacob was the father" (See: [[rc://en/ta/man/translate/figs-ellipsis]])