The office of his wife, Rep.
"As I prepare to leave this all behind, I now leave you in control of the greatest nation of mankind and pray God gives you the wisdom to understand the responsibility you hold in your hands", he said.
He also got in a few digs against President Donald Trump and critics of social programs.
Dingell, 92, passed away on Thursday at his home in Dearborn, Michigan. Debbie Dingell, herself a former auto industry lobbyist. "He will be remembered for his decades of public service to the people of Southeast Michigan, his razor sharp wit, and a lifetime of dedication to improving the lives of all who walk this Earth". "His respect for his constituents, his colleagues of both parties, and the institutions of Congress are a valuable reminder today of what a noble calling public service can be". In 2014, Dingell told Politico Magazine, "If you look, you'll find that what I did was make these laws tolerant for industry".
Of that time, he served on the Energy and Commerce Committee for almost 58 years, making Dingell the longest-serving member on any congressional committee. Dingell, a World War II-era Army veteran, will be interred at Arlington National Cemetery in Washington, D.C.
John Dingell recently released a memoir called: 'The Dean, the Best Seat in the House'.
US President Barack Obama presents the Medal of Freedom to Rep. John Dingell (D-MI) during a ceremony in the East Room of the White House on November 24, 2014 in Washington, DC.
In December 1955, at 29, Dingell won a special election to succeed his father, who had died three months earlier, in his 12th term. The Detroit News reported members of Congress remembered the Democrat on the House floor.
Dingell has been in and out of the hospital multiple times since retiring from Congress.
Dingell dictated the message to his wife and congressional successor Debbie Dingell Thursday in their suburban Detroit home.
Dingell was first elected in 1955, to fill the House seat vacated by his late father.
For his service, Dingell received the Presidential Medal of Freedom, the nation's greatest civilian award, by President Barack Obama on November 24, 2014.
Dingell suffered a heart attack four years later, in September 2018 at age 92.
His wife Debbie said at the time: 'He's alert and in good spirits, cracking jokes like always'.
In 1986, Dingell summoned Deaver, Reagan's former deputy chief of staff, to testify on whether he had used his connections to the president to help build his lobbying business.