'Grain' in the Bible

They shall come and sing in the height of Zion, and shall flow to the goodness of Yahweh, to the grain, and to the new wine, and to the oil, and to the young of the flock and of the herd: and their soul shall be as a watered garden; and they shall not sorrow any more at all.

Because you are glad, because you rejoice, O you who plunder my heritage, because you are wanton as a heifer that treads out [the grain], and neigh as strong horses;