'Clusters' in the Bible

and in the vine are three branches, and it is as it were flourishing; gone up hath its blossom, its clusters have ripened grapes;

For of the vine of Sodom their vine is, And of the fields of Gomorrah; Their grapes are grapes of gall -- They have bitter clusters;

This thy stature hath been like to a palm, And thy breasts to clusters.

I said, 'Let me go up on the palm, Let me lay hold on its boughs, Yea, let thy breasts be, I pray thee, as clusters of the vine, And the fragrance of thy face as citrons,

and another messenger did come forth out from the altar, having authority over the fire, and he called with a great cry to him having the sharp sickle, saying, 'Send forth thy sharp sickle, and gather the clusters of the vine of the earth, because come to perfection have her grapes;'