Before retiring into full time ministry, Jack was a management consultant assisting small and medium sized companies successfully address the challenges of growth in today's economy. In addition to traditional consulting assignments, he has given over 10,000 paid presentations on leadership, management, sales, customer service, and other areas of personal productivity throughout North America.

Jack "grew up" in a main line denomination but 20 years ago experienced a radical conversion to Evangelical Christianity. Since that time he has devoted most of his time and energy to studying and teaching the bible, conducting studies throughout the western US and serving as teacher, counselor, and lay pastor. He has led several pilgrimages to Israel and Jordan, and is the author of all the website's articles. Jack and his family currently reside on the Baja Peninsula in Mexico where they serve as volunteer missionaries.