That's 2 more books and about 6 more chapters than John 6.
What relevant context do you see in Matthew 1 other than Christ was born of a virgin?
John 6 does not discuss salvation and predestination. But the Gospels do, in many chapters, and it is virtually impossible to get a Protestant to discuss the healing episodes and the parables, which are essential if one wants to understand the Pauline formulae in Romans.