“The New Testament repeatedly turns to the cross of Christ as the supreme demonstration of the love of God. The apostle John provides the most famous example: ‘This is how we know what love is: Jesus Christ laid down His life for us… God is love… This is love: not that we loved God, but that He loved us and sent His Son as an atoning sacrifice for our sins’ (1 John 3:16; 4:8, 10). We can begin to appreciate the contours of God’s love by reflecting on the cost of the cross, the depth of our sinfulness, and the perfection of God’s holiness.”
–Steve Jeffery, Michael Ovey, and Andrew Sach, Pierced For Our Transgressions: Rediscovering the Glory of Penal Substitution (Wheaton, Ill.: Crossway, 2007), 151.