set off alarm bells. On 15 August, Tisha B'Av, a day memorializing the destruction of the Temple of Jerusalem, the revisionist Betar movement, despite Pinhas Rutenberg's plea on 8 August to the acting High Commissioner Harry Luke to stop such groups from participating, rallied members from Tel Aviv to join them in the religious commemoration. Kisch, before leaving, had banned Jewish demonstrations in Jerusalem's Arab quarters. The Betar youth gave the ceremony a strong nationalist tinge by singing the Hatikvah, waving the flag of Israel, and chanting the slogan 'The Wall is Ours'.