Peter wrote a letter of great relevance for faithful Christians who need encouragement to stand firm and the spiritually curious person seeking to learn more about God's work. Peter explains why he wrote this letter in these words: "...I have written briefly to you, exhorting and declaring that this is the true grace of God. Stand firm in it." God's grace is knowable and reliable. Peter shows us that God's grace is reliable for both our public lives as citizens and workers and our private lives at home and in church.