Ferdinand van Dieten invites Joseph Semah as the guest for a project in which The Doubling of the House is central. In the house of the gallery two identical houses are built, one in the entrée, one on the first floor. This installation represents among others the ‘Jerusalem of above’ and the ‘Jerusalem of below’. This expression is introduced in the writings about Hechaloth and Merkavah(Sifrut, Ha-Hechalot, Ve-Hamerkavah) as an indication for the trust in God's wisdom even after the first destruction of the temple of Salomon. In the house of below Joseph Semah will read aloud the entire translation in Hebrew of the Theological-political Treatise of Spinoza.
Joseph Semah invites the second guest Mohamed Sabet. This guest chosen by Semah is a reflection on the first, the Jew, as the eternal guest of Christianity.