 He died of shock in 1811 after suffering minor injuries in a fire.Theologically, O'Donel subscribed to the Augustinian position that religion imposes a "reverential fear" on mankind's "naturally licentious" nature.This, and his belief in the essential mystery of the divine nature gave rise to his support for religious tolerance, since God's inscrutability would inevitably lead to theological disagreement, but furthermore, as he wrote to his contemporary John Jones, "an observant [C]hristian of any denomination is...a better man".