Called To Greatness 31 Devotions to Ignite the Faith of Fathers and Sons - by Jimmy Page and Dan Britton. This devotional is a powerful tool to ignite the faith of fathers and sons by intentionally bringing them together to study Gods Word every day for 31 days. In one month, God can do miraculous things to develop, repair, and mature your relationship. Topics include loving unconditionally, walking in integrity, and pursuing purity. Called to Greatness invites and empowers fathers and sons to become great men who humbly and faithfully serve a great God.