How do we know the Gospel is present in the book of Esther?

Although the name of God is not mentioned explicitly in the book of Esther, the narrative intricately represents God’s providence and the unfolding of the Gospel. The characters, particularly Esther and Mordecai, serve as instruments of deliverance for their people, which mirrors the ultimate deliverance found in Christ. Their actions echo the Gospel message, illustrating themes of sacrifice, faithfulness, and God's sovereign control in the lives of His people, ultimately leading to redemption and salvation.