'Corn fields' in the Bible

At that time Jesus went on the sabbath through the cornfields; and his disciples were hungry, and began to pluck the ears and to eat.

And it came to pass that he went on the sabbath through the cornfields; and his disciples began to walk on, plucking the ears.

And it came to pass on the second-first sabbath, that he went through cornfields, and his disciples were plucking the ears and eating them, rubbing them in their hands.