What arguments did Justin Martyr make in Dialogue with Trypho?

In the Dialogue with Trypho, St. Justin Martyr engages in a theological debate with a learned Jew named Trypho to defend Christianity and demonstrate its truth. His primary arguments include:

• Supersession of the Covenant: Justin contends that a new covenant has replaced the old covenant previously established between God and the Jewish people.1
• Jesus as Messiah and Logos: He argues that Jesus is the messiah foretold by the prophets of the Old Testament. Furthermore, he identifies Jesus as the preexisting logos—the divine intellect or word—through whom God revealed himself in the Scriptures.1
• The Chosen People: Justin asserts that the gentiles have been selected to replace Israel as God’s chosen people.1

This work serves as an elaborate defense of the Christian faith against Jewish objections, reflecting Justin's broader efforts to articulate Christian revelation through the lens of philosophy and history.12