When customers ask for devotionals with real substance, point them to the Barbour Value Classics line. These 365-day books feature writings of the giants of Christendom--people like Charles Spurgeon, John Wesley, Matthew Henry, and Andrew Murray. It's very accessible introduction to some of the most important figures in Christian history.
Matthew Henry was an English non-conformist clergyman. Henry's well-known Exposition of the Old and New Testaments (1708–1710) is a commentary of a practical and devotional rather than of a critical kind, covering the whole of the Old Testament, and the Gospels and Acts in the New Testament.