This book is composed of messages that Brother Witness Lee released in a conference in Taipei, Taiwan, in May 1957. The messages that were spoken in the evening meetings of this conference have been published in the book The Testimony and the Ground of the Church. This book is composed of messages that were spoken in the morning meetings. They may be considered as a supplement and application of the messages that were released in the evening meetings. All the chapters of this book were originally published in The Ministry of the Word in 1958.