Zimbabwe's President Robert Mugabe criticized Trump in a scornful speech at the United Nations General Assembly Thursday, during which he referred to the U.S. president as a "giant gold Goliath." Mugabe, Africa's oldest ruler at 93, who has governed Zimbabwe since it gained independence from Britain in 1980, urged Trump to "blow your trumpet in a musical way towards the values of unity, peace, cooperation, togetherness, dialogue."

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9 PHOTOS President Donald Trump speaks at the United Nations See Gallery President Donald Trump speaks at the United Nations NEW YORK, NY - SEPTEMBER 19: President Donald Trump prepares to speak to world leaders at the 72nd United Nations (UN) General Assembly at UN headquarters in New York on September 19, 2017 in New York City. This is Trump� first appearance at the General Assembly where he addressed threats from Iran and North Korea among other global concerns. (Photo by Spencer Platt/Getty Images) U.S. President Donald Trump arrives to address the 72nd United Nations General Assembly at U.N. headquarters in New York, U.S., September 19, 2017. REUTERS/Shannon Stapleton U.S. President Donald Trump steps up to deliver his address to the United Nations General Assembly in New York, U.S., September 19, 2017. REUTERS/Kevin Lamarque US President Donald Trump arrives to address the 72nd Annual UN General Assembly in New York on September 19, 2017. / AFP PHOTO / TIMOTHY A. CLARY (Photo credit should read TIMOTHY A. CLARY/AFP/Getty Images) NEW YORK, NY - SEPTEMBER 19: President Donald Trump prepares to speak to world leaders at the 72nd United Nations (UN) General Assembly at UN headquarters in New York on September 19, 2017 in New York City. This is Trump� first appearance at the General Assembly where he addressed threats from Iran and North Korea among other global concerns. (Photo by Spencer Platt/Getty Images) U.S. President Donald Trump addresses the 72nd United Nations General Assembly at U.N. headquarters in New York, U.S., September 19, 2017. REUTERS/Shannon Stapleton U.S. President Donald Trump addresses the 72nd United Nations General Assembly at U.N. headquarters in New York, U.S., September 19, 2017. REUTERS/Shannon Stapleton US President Donald Trump addresses the 72nd Annual UN General Assembly in New York on September 19, 2017. / AFP PHOTO / TIMOTHY A. CLARY (Photo credit should read TIMOTHY A. CLARY/AFP/Getty Images) US President Donald Trump addresses the 72nd Annual UN General Assembly in New York on September 19, 2017. / AFP PHOTO / Jewel SAMAD (Photo credit should read JEWEL SAMAD/AFP/Getty Images) Up Next See Gallery Discover More Like This HIDE CAPTION SHOW CAPTION of SEE ALL BACK TO SLIDE

"Some of us were embarrassed, if not frightened, by what appeared to be the return of the biblical Giant Gold Goliath," Mugabe said, proving that he had been listening to Trump's threats to North Korea from the podium Tuesday with a biblical retort.

"Are we having a return of Goliath to our midst, who threatens the extinction of other countries?" he asked, triggering applause from the assembly.

Trump's remarks earlier this week stunned some longtime UN watchers when he threatened to "totally destroy" North Korea before calling Kim Jong Un by a nickname he gave the dictator on Twitter last week. "Rocket Man is on a suicide mission for himself."

Mugabe also voiced concern over Trump's plan to withdraw the United States from the Paris climate agreement.

He urged cooperation "in order to halt the inexorable march towards the destruction of that upon which our own existence depends."

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