5 Reasons to Pray the "Angel of God" Prayer History of the Prayer "Angel of God The "Angel of God" prayer, also known as the "Guardian Angel Prayer," is a traditional Catholic prayer that invokes the protection and guidance of one's guardian angel. The exact origins of the prayer are unclear, but it has been a part of Catholic tradition for centuries, reflecting the belief in the existence of guardian angels assigned by God to protect and guide each individual. 5 Reasons to Pray the "Angel of Go