John Gill expounds on 1 Peter 1:10, emphasizing the deep longing of the prophets for the coming of the Savior and the salvation He would bring. They diligently searched the Scriptures and prayed for understanding of the grace that would be revealed through Christ, who embodies God's free grace and offers redemption, justification, and eternal life. Gill highlights that the prophets foretold not only the coming of Christ but also the blessings of grace available to both Jews and Gentiles, including adoption and sanctification. Their inquiries reflect a profound desire to comprehend the spiritual and eternal salvation that would be fulfilled in Jesus.