In that time of future blessing, people would no longer repeat a popular proverb that said that the children were suffering because of their fathers" sins. This proverb expressed a popular misconception (cf. Deuteronomy 24:16; Ezekiel 18:2-4). It blamed present trouble on past ancestors inordinately. In that day, everyone would bear the consequences of his own actions. Justice would be obvious then, even though at present it did not seem to be operating. Whereas people do suffer consequences for the sins of their ancestors to a limited extent (corporate responsibility), they much more consistently suffer for their own sins (individual responsibility). [source][source][source]