The Holiness of God by R.C. Sproul (Tyndale House, 1985) expanded my thinking enormously. Previously I had this vague idea that God was a bit more holy than people. But no! God is so immeasurably more holy than I could ever imagine and what’s more people are so more unholy than I ever understood before. Suddenly the gap between God’s holiness and mine wasn’t just a mere gap but a gigantic chasm the depth and width of which would make the Grand Canyon look like a mere crack.

Suddenly my faith had to stretch to encompass a God who would choose to bridge the enormous disparity between His holiness and my lack of holiness. My appreciation and understanding of what God achieved through the cross grew significantly.

A very challenging and instructive book that helped my faith grow.