'Grain' in the Bible

saying, When will the new moon be gone, that we may sell grain? and the sabbath, that we may set forth wheat, making the ephah small, and the shekel great, and dealing falsely with balances of deceit;

For, lo, I will command, and I will sift the house of Israel among all the nations, like as grain is sifted in a sieve, yet shall not the least kernel fall upon the earth.