Joel 2:16 Kabbalah

אִסְפוּ־עָ֞ם קַדְּשׁ֤וּ קָהָל֙ קִבְצ֣וּ זְקֵנִ֔ים אִסְפוּ֙ עֽוֹלָלִ֔ים וְיֹנְקֵ֖י שָׁדָ֑יִם יֵצֵ֤א חָתָן֙ מֵֽחֶדְר֔וֹ וְכַלָּ֖ה מֵחֻפָּתָֽהּ׃

Gather the people, Sanctify the congregation, Assemble the elders, Gather the children, And those that suck the breasts; Let the bridegroom go forth from his chamber, And the bride out of her pavilion.

Read kabbalistic (mystical) interpretation of Joel 2:16: and classical mystical sources.