President-elect Donald Trump is taking a belt-and-suspenders approach to the oath of office, pledging to protect and defend the Constitution using both the 'Lincoln Bible' and one he was presented as a boy in 1955.

Trump will take the oath on the same burgundy velvet-bound bible used by Abraham Lincoln for his 1861 inauguration, the Presidential Inaugural Committee announced.

It's the same bible that Barack Obama used for both of his inaugurations, although the official release doesn't mention his name, only that it got used in '1861, 2009, and 2013.'

Trump additionally plans to take the oath on the bible he was given by his mother when he graduated from Sunday Church Primary School at First Presbyterian Church in Jamaica, New York, in 1955.

President-elect Donald Trump will take the oath of office on a family bible presented to him by hit mother in 1955 (pictured), along with a bible used by Abraham Lincoln in 1861

“In his first inaugural address, President Lincoln appealed to the ‘better angels of our nature,’” said inaugural chairman Tom Barrack.

“As he takes the same oath of office 156 years later, President-elect Trump is humbled to place his hand on Bibles that hold special meaning both to his family and to our country,' Barrack added.

Trump plans to have dinner with Barrack in Washington tonight.

Chief Justice of the United States John Roberts, who famously flubbed Obama's inauguration in 2009 – then had to stage a do-over to make sure Obama had legitimately taken the oath – will administer the oath to Trump.

Barrack's reference to Lincoln's 'better angels' quote appears to be a call to unity after a divisive campaign, which itself has been followed by new revelations about the intelligence community's conclusion that Russia engaged in election hacking.

President Barack Obama, top hand, is sworn in as wife Michelle holds up the same bible used by former President Abraham Lincoln in 1861 during Obama's inauguration 2009 inauguration ceremony

Trump brandished his bible on the campaign trail in Iowa in December 2015 as he appealed to evangelical voters

'WITH MALICE TOWARD NONE': Abraham Lincoln used the bible for his 1861 inauguration, when he appealed to the 'better angels of our nature' on the eve of war

YOU'RE NOT FIRED? Chief Justice John Roberts, who famously flubbed Barack Obama's oath in 2009, requiring a do-over, will deliver the oath to Donald Trump

Trump will follow Obama by swearing on the same Bible: 'I do solemnly swear that I will faithfully execute the Office of President of the United States, and will to the best of my ability, preserve, protect and defend the Constitution of the United States'

GOOD BOOK: Trump shared the story of his family bible and posted it on Facebook during the campaign

Up to 40 House Democrats have said they plan to skip the inauguration after Trump's weekend spat with civil rights icon Rep. John Lewis, who questioned the legitimacy of Trump's election.

Lincoln said in his 1961 address on the eve of the Civil War, 'We are not enemies, but friends. We must not be enemies. Though passion may have strained, it must not break our bonds of affection. The mystic chords of memory will swell when again touched, as surely they will be, by the better angels of our nature.”

Trump brandished his family bible a few times on the campaign trail. Just days before the Iowa caucuses, he discussed it in a brief video that he posted on Facebook.

Trump got the bible from his mother when he graduated from Sunday Church Primary School at First Presbyterian Church in Jamaica, New York, in 1955

'I really appreciate the support given to me by the evangelicals," Trump said. "They've been incredible. Every poll says how well I'm doing with them."

He noted that his mother gave the bible to him "many years ago."

"In fact, it's her writing right here. She wrote the name and my address and it's just very special to me,' Trump said.

He also brought the book to the Values Voters Summit in September 2015.

"I brought my Bible. You know, it's the First Presbyterian Church, Jamaica, and this was written by my mother, with my name, with my address, with everything," Trump said as showed the bible to the crowd. "I saw this and I had to bring it."

The Lincoln bible wasn't Lincoln's family bible. It was pressed into service after Lincoln arrived in Washington on the eve of the Civil War without some of his belongings.

As CBS reported in 2009, the clerk of the Supreme Court, William Thomas Carroll, brought one of his own bibles that he kept for official use at his office in order to administer the oath.

"That's a very likely scenario for what happened,' Clark Evans of the Library of Congress told the network. After the inauguration, Carroll signed and sealed the bible.