Pope Francis (C) gives an open air mass in Villavicencio, Colombia, on September 8, 2017 during which he will beatify Colombian priest Petro Maria Ramirez (painting on the right) and Bishop Jesus Jaramillo (painting on the left). Pope Francis urged Colombians to avoid seeking "vengeance" for the sufferings of their country's half-century civil conflict as they work towards a lasting peace. / AFP PHOTO / Luis ACOSTA