President Joe Biden, former presidents and other dignitaries are gathering at Washington National Cathedral in Washington, D.C., to honor former President Jimmy Carter.

"We have an obligation to give hate no safe harbor," the president asserted with Donald Trump in the audience.

President Joe Biden eulogized former president Jimmy Carter on Thursday as a man who “taught me the strength of character” and refused to let personal ambition or politics erode his inherent goodness, using one of his final speeches as president to issue an indirect rebuke to the politics of today.

President Joe Biden gives eulogy for former President Jimmy Carter. Watch the full speech from the National Cathedral in Washington.

President Joe Biden was in his first term as senator for Delaware in 1977 at the time Carter was in office. Biden will be at Carter’s funeral Thursday morning to give a eulogy to the late 39th president.

President Joe Biden delivered a speech at Jimmy Carter's funeral and spoke about how he endorsed Carter’s presidential candidacy.

All five living presidents will be present to honor the late former President Jimmy Carter during his funeral service at the National Cathedral in Washington, D.C. on Thursday morning.

The final day of Jimmy Carter's state funeral is Thursday as his life is celebrated in Washington. Follow for updates from D.C. to Plains.

President Joe Biden spoke of his friendship with Jimmy Carter that started in 1974 when Biden was the first sitting Democratic senator to endorse the late president.

Trump is obviously no fan of Biden, but Obama and his veep also have a famously complex relationship, only made more so after Obama helped nudge Biden to quit the presidential race last summer. Surely Obama feels some frustration that Biden fumbled a possibly winnable race; maybe he couldn’t help spill to his sworn enemy?

The pair paid tribute to former President Carter at his state funeral on Thursday, performing John Lennon's "Imagine."

Jimmy Carter, the 39th U.S. President, is being honored with the pageantry of a state funeral in the nation's capital, followed by a second service and burial in his tiny Georgia hometown that launched a Depression-era farm boy to the world stage.