And he [Jesus] said to his disciples, For this reason I say to you, Take no thought for your life, about what food you will take, or for your body, how it may be clothed. Is not life more than food, and the body than its clothing? Give thought to the ravens; they do not put seeds into the earth, or get together grain; they have no store-houses or buildings; and God gives them their food: of how much greater value are you than the birds! And which of you by taking thought is able to make himself any taller? If, then, you are not able to do even that which is least, why are you troubled about the rest? (Luke, 12:22-26)