By the time He knows enough: The crisis with the alliance of Syria and Israel against Judah occurred in 734 BC. By 732 BC, Damascus, the capital of Syria, was destroyed. Israel, the northern kingdom, was also defeated.
to reject evil and choose good: This was to happen by age 12, when a child was considered an adult. In 722 BC, Israel went into exile.
He will be eating curds and honey: The land would lose so many people that food would become easy to find. Even rich foods, once rare, would be available to everyone.