How do we know that God provides a substitute for our sins?

Scripture consistently answers the question of God's provision for our substitute through the figure of the Lamb. In Genesis 22, Abraham responds to Isaac's inquiry about the lamb with a profound declaration that God will provide. This foreshadows the ultimate sacrifice of Christ, as noted in Revelation 13:8, where Jesus is described as the Lamb slain from the foundation of the world. Hence, through the unfolding narrative of the Old Testament sacrifices, we see God's plan of salvation culminates in Jesus Christ, who becomes that perfect and sufficient lamb for our sins. The historical and theological significance of this provision reassures believers of God’s faithful character in meeting our deepest need for redemption.