On March 20, 2016, Dr. Jaerock Lee's Bible study book Hidden Manna Vol. 1 was published following the weekly study book Six-day Manna.

This book consists of two parts. Part 1, "Beautiful Goodness of the Forefathers of Faith" shows the life and faith of the forefathers who moved God's heart such as Elijah, Moses, Apostle Paul, and Mary Magdalene. Readers will be able to learn the highest level of goodness and love these forefathers demonstrated before God. They will also discover the keys to receiving answers and blessings.

The part 2, "The Measure of Faith Allotted by God" clearly explains the process of growth of faith from the faith that we have when we accept Jesus Christ up to the perfect faith of whole spirit that is pleasing to God. Readers will have a chance to check their measure of faith and gain greater longing for the rock of faith, spirit, and whole spirit, and even deeper level of whole spirit.

Hidden Manna Vol. 1 was published in celebration of Easter, 2016. We hope that many people will read this book and thereby grow up in faith, attain to the measure of the stature which belongs to the fullness of Christ, achieve the utmost level of goodness with which they can give their lives unsparingly even for their enemies, and enter New Jerusalem.