לְמַ֤עַן יֵדְע֨וּ ׀ דּ֣וֹר אַ֭חֲרוֹן בָּנִ֣ים יִוָּלֵ֑דוּ יָ֝קֻ֗מוּ וִֽיסַפְּר֥וּ לִבְנֵיהֶֽם׃
That the generation to come might know them, even the children that should be born; Who should arise and tell them to their children,
Read kabbalistic (mystical) interpretation of Psalms 78:6: and classical mystical sources.