The Tabernacle of David That Is Fallen

On Sukkot, the Feast of Tabernacles, the holiday commemorating the temporary dwellings the Children of Israel built as they traveled through the desert after leaving Egypt, as with other holidays, Jews add a small prayer to the Birkat Hamazon, the Grace After Meals prayer.  That prayer is, “Harachamon who yakim lanu et sukkat Dovid hanofelet,” “May the Merciful One rebuild for us King David's fallen sukkah (tabernacle).”  The words “rebuild for us King David's fallen sukkah” come from a verse in the book of the prophet Amos.