Decrees of the Seventh Ecumenical Council (A.D. 787) which was summoned to address the issue of iconoclasm. The council declared the production and exposure of art representing Christ and the saints to be an authentic ecclesiastical tradition in harmony with the spread of the gospel. Image above links to Tanner translation. ISBN recommendation: 0-87840-490-2.  For a more detailed defense of holy art, see St. John of Damascus: Apologies Against Those Who Attack the Divine Images in Appendix I.