Jeremiah 32:30 employs this unusual plural form ('from their youths') to indict Israel and Judah: 'For the people of Israel have done nothing but evil in my sight from their youth.' The plural may emphasize generational continuity—youth after youth, generation after generation—or function as an intensive plural stressing the entirety of their early history. Either way, the indictment is comprehensive: rebellion isn't a recent development but a chronic condition extending back to national origins. Jeremiah's lament suggests corruption is baked into the national character from the beginning.