The Lamb of God and flag on the shield are those of St. John the Baptist, while the book with the seven seals on which the lamb sits represents the Book of Revelation, generally attributed to John the Apostle.
The Lamb of God and cross flag on the shield are symbols traditionally associated with St. John the Baptist, patron of the island. The book with the seven seals on which the lamb sits represents symbolism from the Book of Revelation, generally attributed to St. John the Apostle.