Did Trump put his hand on the Bible? Here’s what to know about the tradition.

Social media onlookers observed that President Donald Trump didn’t place his hand on the Bible when sworn in at his inauguration, with some wondering how the Bible factors into the ceremony. 

While it is common for incoming presidents to place their hand on a Bible while taking the oath of office, it’s not a legal requirement.

Article VI of the U.S. Constitution states that “all executive and judicial Officers, both of the United States and of the several States, shall be bound by Oath or Affirmation, to support this Constitution; but no religious Test shall ever be required as a Qualification to any Office or public Trust under the United States.”

First lady Melania Trump stood next to him holding two Bibles — one given to Mr. Trump by his mother when he was a child, and the Lincoln Bible, which was used at Abraham Lincoln’s 1861 inauguration. Mr. Trump’s right hand was raised while his left arm stayed by his side.

Mr. Trump did reference God during his first remarks as the 47th president. 

“I was saved by God to make America great again,” he said in his inaugural address, referencing the assassination attempt on his life over the summer.

Vice President JD Vance placed his hand on a Bible when he took the oath of office on Monday. He used a family Bible that belonged to his maternal great-grandmother, according to Trump’s inaugural committee. Vance was sworn in by Supreme Court Justice Brett Kavanaugh. His wife, Usha Vance, held the Bible as Vance took his oath of office. 

At his first inauguration in 2017, Mr. Trump did place his hand on the two Bibles — the family Bible and the Lincoln Bible — when he took the oath of office. Mr. Trump received the family Bible in 1955 to to mark his Sunday Church Primary School graduation at First Presbyterian Church, in Jamaica, Queens, according to Trump’s inaugural committee.

It was not immediately clear why Mr. Trump made his oath of office on Monday without his hand on the Bible. The president notably also has his own  “God Bless the USA” Bibles — sold for $59.99 each.