Horatius Bonar emphasizes the dual nature of Jesus Christ as both very man and very God, highlighting His human lineage through David and Abraham as well as His divine essence. He explains that Jesus embodies true humanity, experiencing all human emotions and conditions while remaining sinless, and that His Jewish heritage connects Him to God's elect nation. Bonar further illustrates that Jesus is our King, destined to rule as the heir of David's throne, and that His coming fulfills God's purpose of grace and blessing for all humanity. The sermon concludes with the proclamation of Jesus as the Savior, prophet, priest, and king, affirming God's love for mankind.