[7] For to what other being should one bring gifts of gratitude except to God? and what offerings can one bring unto him except of those things which have been given to us by him? For it is not possible for us to have an abundance of anything else. And he has no need of any of those things which he enjoins men to offer unto him, but he bids us bring unto him the things which are his own, through the excess of his beneficence to our race. For we, studying to conduct ourselves with gratitude to him, and to show him all honours, should purify ourselves from sin, washing off all things that can stain our life in words, or appearance, or actions.