The lily appears in ancient literature associated with both sovereignty and virginal innocence, and is mentioned on a number of occasions in the Bible, such as the description in Solomon's Song of Songs (2, 1–2) ""I am a rose of Sharon, a lily of the valleys. Like a lily among thorns is my darling among the young women"" or the Gospel of Mathew (6, 28) ""Consider the lilies of the field, how they grow; they toil not, neither do they spin"" to represent beauty. Artistic representations can be found as far back as frescos from the second century BC, at Amnisos and Knossos. Early Christian churches, such as that of the Basilica of Sant' Apollinare in Classe were sometimes decorated with lilies. While predominantly depicted as white, those seen at Akrotiri are red lilies. The white lily has long been seen as a symbol of purity, coming to be associated with the Virgin Mary in the Middle Ages, from which came the name ‘Madonna lily’ ("Lilium candidum"). A well-known example is Leonardo da Vinci's "Annunciation" (1472–1475) in which the archangel Gabriel bears a Madonna lily. Other symbolic meanings include glory, love and birth.