'Grain' in the Bible

-- And this to thee is the sign, Food of the year is self-sown grain, And in the second year the spontaneous growth, And in the third year, sow ye and reap, And plant vineyards, and eat their fruit.

For wind they sow, and a hurricane they reap, Stalk it hath none -- a shoot not yielding grain, If so be it yield -- strangers do swallow it up.

For lo, I am commanding, And I have shaken among all the nations the house of Israel, As one doth shake with a sieve, And there falleth not a grain to the earth.