This Bible study shows how God used his servant Isaiah to call His people to repentance. In workbook format, it provides exercises for students, questions for discussion, memory verses, and much more. Wisdom of the Word was founded in 1986 by Jeannie McCullough in Bethany, Oklahoma. It began as a weekly Bible study at Bethany First Church of the Nazarene. In the first year the study grew to over 400 members, and people from other churches and the community began joining. The local enrollment of Wisdom of the Word eventually exceeded 1,000. Wisdom of the Word has been an instrument in uniting the community of believers as well as reaching the unchurched and the lost. It is now ministering to thousands through videos and cassette tapes and other programs such as Children of the Word, prison ministries, and missions.