Verses with the word cluster in the Old Testament (5 verses):

Numbers 13:23
And they came unto the brook of Eshcol, and cut down from thence a branch with one cluster of grapes, and they bare it between two upon a staff; and they brought of the pomegranates, and of the figs.

Numbers 13:24
The place was called the brook Eshcol, because of the cluster of grapes which the children of Israel cut down from thence.

Canticles 1:14
My beloved is unto me as a cluster of camphire in the vineyards of Engedi.

Isaiah 65:8
Thus saith the LORD, As the new wine is found in the cluster, and one saith, Destroy it not; for a blessing is in it: so will I do for my servants' sakes, that I may not destroy them all.

Micah 7:1
Woe is me! for I am as when they have gathered the summer fruits, as the grapegleanings of the vintage: there is no cluster to eat: my soul desired the firstripe fruit.