Priesthood, Celibacy and the Crisis of the Catholic Church

In this book, Pope Emeritus Benedict and Cardinal Robert Sarah give their brother priests and the whole Church a message of hope. They honestly address the spiritual challenges faced by priests today, including struggles of celibacy. They point to deeper conversion to Jesus Christ as the key to faithful and fruitful priestly ministry and church reform. 
From the Depths of Our Hearts is an unprecedented work by the Pope Emeritus and a Cardinal serving in the Vatican. As bishops, they write “in a spirit of filial obedience” to Pope Francis, who has said, “I think that celibacy is a gift for the Church … I don’t agree with allowing optional celibacy, no.” 

Benedict removes name from book on celibacy after dispute over his involvement

by Joshua J. McElwee

Retired Pope Benedict XVI's name is being removed as a coauthor of a controversial new book defending the Catholic Church's practice of clerical celibacy after dueling accounts emerged of the ex-pontiff's involvement in the preparation of the volume.

Benedict XVI to Be ‘Contributor’, 

Not ‘Co-Author’ of Book on Priestly Celibacy

Cardinal Sarah Demonstrates Text Was Clearly Benedicts; Announces Update After Benedict’s Secretary Shares Pope Emeritus Prefers Not to Be ‘Co-author’