פּירוש אויף דברים 28:8

The context of the word warehouses indicates that it must mean “storehouses”, or something similar.

The Lord will command the blessing [to be] with you in your storehouses. Since it is said You will decree a thing, and it will be established for you (Job 22:28). When a righteous person decrees something, the Holy One, blessed be He, agrees with him, as in Sun, stand still at Gibeon (Joshua 10:12), and like Elijah who said, The jar of flour shall not be used up (1 Kings 17:14), and in the Tractate Taanit (25a) regarding Rabbi Chanina ben Dosa, “Let your beams reach,” and many similar cases. Therefore it says, The Lord will command the blessing to be with you, meaning when you command blessing, then God will command along with you and will concur with your blessing and your command.

באסמיך, in your storage chambers which will be bursting full with different kinds of grain, grapes, and olives. This is described graphically in Proverbs 3,10 וימלאו אסמיך שבע,”and your barns will be filled with food, your vats will burst with new wine.”