The Growing Edge is a book of Howard Thurman's sermons. For Thurman, the sermon is an act of worship in which the preacher exposes his spirit and mind as they seek to reveal the spirit of the Living God upon them. Thurman presents his sermons in six sections: Concerning Enemies, Concerning Prayer, Concerning God, Concerning Peace, Concerning Festivals, and Concerning Christian Character.

Experts from various fields offer concise definition, analysis, and discussion of nearly one hundred preaching topics. Subjects discussed include decision-making, abortion, incarnation, poverty, education, the Ten Commandments, jealousy, wealth, stewardship, and violence and war.