Repentance and Monastic Life
The defining episode of David's life as the synaxarion preserves it is the announcement of his forgiveness. After he had become a devoted monk, the Archangel Gabriel is said to have appeared to him to declare that the Lord had forgiven his sins. David, in his humility, doubted that such grave offenses could be pardoned so quickly. As a consequence of this doubt the accounts relate that he was made speechless, though he retained the ability to pray and to take part in the services of the church.
In his later years David was held to have received the gift of miracles. The sources record that he healed many of the sick and cast out evil spirits. He died after many years of monastic struggle and is numbered among the venerable fathers.