Theresa May will tell MPs on Monday that rejecting her Brexit deal lead to “division and uncertainty”.
After the prime minister’s deal was accepted by EU leaders over the weekend, May has to now persuade MP’s to back the deal.
MPs will vote in the House of Commons held on 12 December, where a rejection of the agreement is expected to lead to a no-deal scenario.
May will make a statement on Monday, where she will say: “Our duty as a Parliament over these coming weeks is to examine this deal in detail, to debate it respectfully, to listen to our constituents and decide what is in our national interest,”
She will say that MPs decide to reject the deal, it will take the UK “back to square one”.
“It would open the door to more division and more uncertainty, with all the risks that will entail,” she will add.
Jeremy Hunt, the foreign secretary, has said that getting backing from Parliament may be difficult.
“It’s not possible to rule out anything, and that’s why all of us have to say: what do your constituents actually want in this situation? And we have to work out what’s in the national interest, and it’s all about the balance of risks,” he said.
As well as British MPs, the prime minister also hopes to “speak directly to the British people” and explain the benefits of the agreed Brexit deal.
“I will take this deal back to the House of Commons confident we have achieved the best deal available, and full of optimism about the future of our country,” said May.
“In parliament and beyond it, I will make the case for this deal with all my heart, and I look forward to that campaign,” she added.
However, whilst rejecting the deal may lead to crashing out of the EU without a deal, Labour leader Jeremy Corbyn does not think that the prime minister’s Brexit deal is good enough.
“This is a bad deal for the country. It is the result of a miserable failure of negotiation that leaves us with the worst of all worlds. It gives us less say over our future, and puts jobs and living standards at risk. That is why Labour will oppose this deal in parliament,” he said.