Hebrew translation:
On 28 May, we (Lehava) are coming to dismantle the Dome of the Rock
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Clarification: The original poster by Lehava is the entire image/text above the line of logos at the bottom which are actually those of Israeli peace and progressive groups - Breaking the Silence, Peace Now, et. al. These groups reprinted the Lehava poster with their own logos included and have redistributed it as a warning to the wider public of Lehava's intention to converge on and dismantle, i.e., destroy, the Dome of the Rock. DJW
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Lehava - Hebrew: "Flame" (Prevention of Assimilation in the Holy Land) is a far-right and Jewish supremacist organization based in Israel that strictly opposes Jewish assimilation, objecting to most personal relationships between Jews and non-Jews. It is opposed to the Christian presence in Israel. It has an anti-miscegenation focus, denouncing marriages between Jews and non-Jews forbidden by Orthodox Jewish law. The group has over 10,000 members.
Source:
https://en.wikipedia.org/wiki/Lehava