The Exile of King Jeconiah
Eleven years before the destruction of the First Holy Temple, King Jeconiah (also referred to as Jehoiachin or Coniah) succeeded his father, Jehoiakim, as king of Judah. He only ruled for three months and ten days before King Nebuchadnezzar of Babylonia laid siege to Jerusalem and King Jeconiah surrendered. Nebuchadnezzar plundered Jerusalem and the Temple and took many prominent Jews, including King Jeconiah and the prophet Ezekiel, to Babylon (the Temple was not actually destroyed until a few years later).
Expounding on the verse “You will rise, You will have mercy on Zion for there is a time to favor it, for the appointed season has arrived; for Your servants desired its stones and favored its dust,” the Midrash relates that when Jeconiah and his fellow exiles left, they carried with them some of the stones and the earth of Jerusalem to build for themselves a synagogue in Babylon. Although destroyed and rebuilt, this synagogue was still in existence hundreds of years later during Talmudic times.
Earth from Israel During Burial
While there is no specific custom regarding building a synagogue with Jerusalem stone, we do find that there is a Jewish custom, related to the verse in Psalms quoted above, to place some earth from Israel in the coffin during burial. This is done both as a means of atonement and a symbol of our longing for the Redemption and the Resurrection of the Dead (for more on this see Why Do Some Put Earth From Israel in the Coffin?).
Remembering the Destruction
One way in which Jerusalem is literally built into our homes is the law that when building a new home (as opposed to buying an already painted or finished building) one should endeavor to leave a patch unfinished, measuring an amah by an amah (approx. 1.5 ft. x 1.5 ft.), to remind us of the destruction of Jerusalem and the Holy Temple.Through this reminder, we fervently pray for the rebuilding of the Holy Temple with the coming of Moshiach. May it be speedily in our days!