Genesis 1:29-30

29So God said, “Behold, I have given you every plant yielding seed that is on the surface of the entire earth, and every tree which has fruit yielding seed; it shall be food for you;

30and to all the animals on the earth and to every bird of the air and to everything that moves on the ground—to everything in which there is the breath of life—I have given every green plant for food”; and it was so [because He commanded it].