The document explores the parallels between figures from the Old Testament and New Testament, particularly focusing on Abraham, Sarah, and St. Joseph, and their respective roles in God's plan. It highlights key similarities, such as miraculous pregnancies, divine visits, and obedience to God's commands, illustrating how these stories prefigure the events surrounding the Annunciation and the establishment of the Church. Additionally, it draws connections to St. Peter and Moses, emphasizing the historical significance of these figures in the foundation of faith and the continuity of divine promises.