“Be praised, my Lord, through all your creatures, especially through my lord Brother Sun, who brings the day; and you give light through him. And he is beautiful and radiant in all his splendor! Of you, Most High, he bears the likeness. Be praised, my Lord, through Sister Moon and the stars; in the heavens you have made them, precious and beautiful. Be praised, my Lord, through Brothers Wind and Air, and clouds and storms, and all the weather, through which you give your creatures sustenance. Be praised, My Lord, through Sister Water; she is very useful, and humble, and precious, and pure. Be praised, my Lord, through Brother Fire, through whom you brighten the night. He is beautiful and cheerful, and powerful and strong. Be praised, my Lord, through our sister Mother Earth, who feeds us and rules us, and produces various fruits with colored flowers and herbs. Be praised, my Lord, through those who forgive for love of you; through those who endure sickness and trial. Happy those who endure in peace, for they will be crowned.”
Francis of Assisi was a Catholic deacon and the founder of the Order of Friars Minor, more commonly known as the Franciscans.
Francis heard a sermon that changed his life. The sermon was about Matthew 10:9, in which Christ tells his followers that they should go forth and proclaim that the Kingdom of Heaven was upon them, that they should take no money with them, nor even a walking stick or shoes for the road. Francis was inspired to devote himself to a life of poverty.
Francis's attitude towards the natural world, while poetically expressed, was conventionally Christian. He believed that the world was created good and beautiful by God but suffers a need for redemption because of the primordial sin of man. He preached to man and beast the universal ability and duty of all creatures to praise God (a common theme in the Psalms) and the duty of men to protect and enjoy nature as both the stewards of God's creation and as creatures ourselves.