Kathryn Kuhlman teaches on the letter to the Church in Pergamos in Revelation 2:12-17. She focuses on worldliness and the gifts of "Hidden Manna" and "the white stone". This will not be a series because I only have this one radio show but If you want to go deeper parts 2 and 3 of The Church series focuses on Revelation Chapters 2 and 3 teachings you will find that series here https://youtube.com/playlist?list=PLSMOPSA4R5IAw-fmxfzQ5-z_zlUtnUZ6q&si=tdSUm16Sfzg0rVxW

you will find the concept of "Hidden Manna" here https://youtu.be/uLuybCOnfRI?si=-_CAVUqmGk08YQm3

And Kathryn also taught a  ...