Brexit Trade: The trade deal is a resolution of ties between the UK and the EU - Boris Johnson

Boris Johnson would contend that the Brexit trade deal negotiated on Christmas Eve represents "not a rupture but a resolution" of ties between the United Kingdom and Europe, as he encourages MPs to support the legislation that will implement it. 

The government plans to pass the EU Future Relationship Bill into parliament on Wednesday at break-neck pace, completing all steps of the procedure in a single day in both the House of Commons and the House of Lords.

That timetable has been criticised by some MPs, who argue legislation of such significance should be subject to much greater parliamentary scrutiny.

Opening the debate, the prime minister is expected to say: "Those of us who campaigned for Britain to leave the EU never sought a rupture with our closest neighbours.

"We would never wish to rupture ourselves from fellow democracies beneath whose soil lie British war graves in tranquil cemeteries, often tended by local schoolchildren, testament to our shared struggle for freedom and everything we cherish in common.

"What we sought was not a rupture but a resolution, a resolution of the old and vexed question of Britain's political relations with Europe, which bedevilled our post-War history.

We were standing aloof at first, then we were a half-hearted, often obstructive EU member.

Now, with this bill, we shall be a friendly neighbour - the best friend and ally the EU could have - working hand-in-glove whenever our values and interests coincide while fulfilling the sovereign wish of the British people to live under their own laws, made by their own elected Parliament.

The Commons is expected to spend five hours debating the 80-page bill, then the House of Lords will debate late into the evening.

If the bill is passed by Parliament the UK-EU trade agreement will come into effect after 11pm on Thursday evening.

It comes after the once-rebellious Brexiteer wing of the Conservative party indicated they would back the government.

Labour Leader Sir Keir Starmer has also instructed his MPs to vote in favour of the deal, arguing the alternative would be a no-deal Brexit, though several are expected to vote against.

Labour are also planning to seek amendments to the bill that would require the government to provide twice-yearly economic impact assessments of the trading relationship.

Sir Keir is under pressure from senior backbenchers, including the former shadow chancellor John McDonnell, Clive Lewis and Ben Bradshaw, who have called on him to rethink his position and oppose the bill.

But with little chance of a substantial Conservative rebellion, and with Labour's support unlikely to change, the bill is almost certainly going to be passed into law.

However, the DUP - who support Brexit in principle - have said they will not vote in favour of the trade deal due to concerns Northern Ireland remains tied to the EU more closely than the rest of the UK.

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The party's Brexit spokesman, Sammy Wilson, told Sky News the speed at which the government was attempting to pass the legislation meant scrutiny would be insufficient.

"My fear is we'll push this through in haste and repent at our leisure for some of the things which we discover later on are in it which don't deliver."

The Scottish National Party and Liberal Democrats have both suggested that the proposal would be voted against. 

If the debate is underway in Westminster, the deal itself will be signed in Brussels by President Ursula von der Leyen of the European Commission and President Charles Michel of the European Council before being flown to London to be signed by the Prime Minister.