For a 17-minute clip on Joseph’s example in Matthew 1, see
For more material on Matthew’s Gospel, see http://faculty.gordon.edu/hu/bi/ted_hildebrandt/DigitalCourses/00_DigitalBiblicalStudiesCourses.html#Matthew_Keener (free for everyone; but please circulate this ESPECIALLY in parts of the world where people can access the internet but lack direct access to theological education).