They cited a projection from the Institute for Fiscal Studies that by 2020/21 three million children would be at risk of going hungry during the school holidays and 5.2 million children would be living in poverty.
One of the signatories, Rabbi Alexandra Wright, senior rabbi of the Liberal Jewish Synagogue, St John’s Wood, said, “The great tragedy of Brexit in the UK is that it has knocked off the table the issue of poverty.”
Ms Rudd recently announced some changes to welfare plans, including a decision not to extend the cap on benefits for families with more than two children retrospectively.
But the cap - which within the Jewish community in particular hits large Charedi families - will continue to affect families who had a third child after the introduction of the measure in April 2017.