Deuteronomy 28:39-40

28:39 You will plant vineyards and cultivate them, but you will not drink wine or gather in grapes, because worms will eat them. 28:40 You will have olive trees throughout your territory but you will not anoint yourself with olive oil, because the olives will drop off the trees while still unripe. ¹ 

[28:40]  ¹ tn Heb “your olives will drop off” (נָשַׁל, nashal), referring to the olives dropping off before they ripen.