"He's been very coy about discussing this, particularly in front of the religious community. I was honoured to be asked."
Mr David revealed he had only just received a delivery of 20,000 leaflets to support his campaign in Hendon, where he planned to challenge Tory candidate Matthew Offord over his commitment to a hard Brexit.
"It's probably the right decision in regards to the marginals," said Mr David, of the move to pull out Brexit Party candidates in a deal with the Conservatives.
"I think there has been some kind of arrangement with the Prime Minister. Nigel Farage has said a few things he has committed to do with regards to regulatory realignment. From what I can see, Brexit isn’t about xenophobia or extremism."
Mr David said his view of the EU was that it was “damaging” to the interests of the Jewish community.
He added: “How can a small community advocate for its rights in a block of 500 million people better than it can in a country of 80 million?
”When we are talking about schechita, halal slaughter and on brit Milah we are just more able to advocate in our country.
“With regard to looking after our interests we are better, I would say, in beautiful Great Britain with its longstanding traditions of open mindedness.”