תּלמוד אויף דברים 28:8

is able to contain [what is put into it], and a full vessel cannot contain it but according to the ways of the Holy One, blessed be He, a full vessel is able to contain it while an empty one cannot; as it is said, “And it shall come to pass, if listening you shall listen” (Deuteronomy 28:8): if you listen, you will continue to listen, but if not, you will not listen. Another interpretation: If you will listen to the old, you will be able to listen to the new,” but if you turn your heart away, you will no longer listen” (Deuteronomy 30:17).