John Saggio received biblical instruction at the Bible Institute of Los Angeles from 1959-1960 and Moody Bible Institute from 1963 to 1965. He served in the U.S. Army from March of 1966 to February of 1969, completing his last year of duty in Vietnam. Returning from Vietnam, he attended Mesa Community College, Mesa, Arizona. Then he completed in 1973 his BA in secondary education at Arizona State University, Tempe, Arizona, where he majored in History and Philosophy and minored in English literature.

Mr. Saggio spent over 30 years in the field of education. He has taught philosophy at Mesa Community College and Florence Federal Prison, Florence, Arizona; English and Literature at Queen Creek High School, Queen Creek, Arizona; and Mountain View High School, Mesa, Arizona; and English and History at Apache Junction Junior High School, Apache Junction, Arizona. In addition, Mr. Saggio, during his last 35 years, has been engaged in teaching Old and New Testament biblical studies in private lectures.

The Destiny of Israel and the Twilight of Christianity: In Quest of the Meaning and Significance of the Hebrew and Greek Scriptures is the culmination of over 50 years of extensive biblical, theological, philosophical, historical and classical as well as modern literary reading, research, analysis, and criticism. The research involved in these studies has contributed much to the writing of this volume.