The Second Great Waxing of Israel's History

Christ is the one who brings in the seventh seven. He completes the movement started in abraham to david, that first great waxing of israel's history and brings it into a second great waxing. The story of matthew focuses on joseph in its nativity account which should serve as a caution against marginalizing or down playing the importance of joseph as a figure within the story of christ. What characters do you see matthew particularly highl in? How is he hihlighting them? And how does their connection with jesus and his genealogy help us to understand who jesus is when he comes on the scene?