The text narrates the life of Bernac, a virtuous Israelite chosen by God, who embarks on a pilgrimage to spread the teachings of Christ. Despite his noble lineage and wealth, he chooses a life of humility and service. He confronts a deadly beast plaguing Romania, earning admiration for his bravery. However, desiring to please God rather than seek fame, he leaves Rome for Lesser Britain, where he performs miraculous healings. As he faces temptation from a nobleman's daughter, Bernac's steadfastness to his faith is tested, showcasing his commitment to purity and divine purpose.