Ironside was one of the greatest Bible teachers the world has ever known. For some 50 years he went up and down America teaching and preaching the Word of God. He was the ultimate in his field. Coupled with this was his successful ministry as pastor of Moody Church from 1930 to 1948 which made him the most known Christian leader of his era, outside of Billy Sunday whose funeral he preached. He was affectionately known as "the archbishop of Fundamentalism."