WASHINGTON — The full contents of the letter former President Joe Biden left for President Trump has been revealed.

“Dear President Trump, As I take leave of this sacred office I wish you and your family all the best in the next four years. The American people — and people around the world — look to this house for steadiness in the inevitable storms of history, and my prayer is that in the coming years will be a time of prosperity, peace, and grace for our nation.

May God bless you and guide you as He has blessed and guided our beloved country since our founding,” read the letter, obtained by Fox News.

The card was signed, “Joe Biden 1-20-25.”

Trump found the letter in the drawer of the Oval Office desk on Monday and said Tuesday that the note was “nice.”

“It said ‘To number 47’ and it was a very nice one,” Trump told reporters during a press conference in the White House’s Roosevelt Room on Tuesday.

“Basically, it was a little bit of an inspirational-type letter, you know, ‘Enjoy it. Do a good job.’”

He went on: “I think I should let people see it, because it was a positive for him.”

Trump held up the envelope to reporters in the Oval Office on Monday, showing that it was inscribed with “47” on the outside.

The tradition of the outgoing president leaving a letter for their successor began in 1989 under late former President Ronald Reagan.

Biden never revealed what exactly was in the note that Trump left for him in 2021, but said it was “generous.”

In the following years, the two traded barbs as they geared up for a rematch in 2024, with the president and his vice president, Kamala Harris, both ripping his Republican opponent as a dangerous “fascist.”

Trump, 78, fired back at other points that the deposed Democratic incumbent was “incompetent” and “the most corrupt president in history.”