Father Griffin's faith and service of God and God’s people is very important to him. His journey has taken him from his initial church of baptism, the Episcopal Church to reception into the Roman Catholic Church. From the first Mass he attended as a teen, he fell in love with the Church, its sacraments, and its ministries. Father Griffin's journey has included a call to service as a minister in the Catholic Church as a Conventual Franciscan Friar. Franciscanism, as Father Griffin has stated, became his spiritual charism and will always be the heart of his spirituality. During his ten years of ministry as a friar, he mostly worked in the education apostolate. Father Griffin taught in schools in Athol Springs, New York; Birmingham, Alabama; and Los Angeles, California. He also served as the pastoral associate for their mission parish in Bessemer, Alabama. Father Griffin said, "As I reflected on and discerned my calling, I eventually realized I needed to leave my religious community and look for the place and lifestyle that would truly support and fulfill me."

After leaving the Franciscans, Father Griffin has served as a high school assistant principal and a high school principal in two public schools in the greater San Diego area and is now the Principal of a Charter School in the Los Angeles area. Father Griffin was accepted into the American Catholic Church, Diocese of California in 2006, and was ordained as deacon in March of 2006. He was ordained to the priesthood on June 10, 2006, in San Diego for the American Catholic Church Diocese of California.

Father Griffin stated, "I have felt called to priestly ministry since adolescents. I feel the call to witness to Christ’s love and to share in the faith journey of others towards Christ. As a priest, I have the opportunity to grow with others and be ministered to by others. I have been provided the opportunity to share the joy of a family at the birth and the baptism of a newborn child, the joy of a teen saying yes to Christ in confirmation, the faith of a Christian as they strongly believe in and receive the body and blood of Christ in the Eucharist. I am also able to share in the reconciliation of God’s holy people in the sacrament of penance, the joy shared when a couple commits to one another in marriage or holy union service, and I learn many lessons from the dying and those who fall asleep in faith. This is my call and with the help of God and our Church, this call will be brought to fulfillment for the greater glory of God!"