Pope Francis gestures goodbye as he prepares to depart -. (AP Photo/Dolores Ochoa)

Pope Francis gestures goodbye as he prepares to depart -. (AP Photo/Dolores Ochoa)

SANTA CRUZ (Reuters) –Pope Francis on Thursday urged the downtrodden to change the world economic order, denouncing a “new colonialism” by agencies that impose austerity programs and calling for the poor to have the “sacred rights” of labor, lodging and land.

In one of the longest, most passionate and sweeping speeches of his pontificate, the Argentine-born pope also asked forgiveness for the sins committed by the Roman Catholic Church in its treatment of native Americans during what he called the “so-called conquest of America.”

Quoting a fourth century bishop, he called the unfettered pursuit of money “the dung of the devil,” and said poor countries should not be reduced to being providers of raw material and cheap labor for developed countries.

 Repeating some of the themes of his landmark encyclical “Laudato Si” on the environment last month, Francis said time was running out to save the planet from perhaps irreversible harm to the ecosystem.

Francis made the address to participants of the second world meeting of popular movements, an international body that brings together organizations of people on the margins of society, including the poor, the unemployed and peasants who have lost their land. The Vatican hosted the first meeting last year.

He said he supported their efforts to obtain “so elementary and undeniably necessary a right as that of the three “L’s”: land, lodging and labor.”

His speech was preceded by lengthy remarks from leftist Bolivian President Evo Morales, who wore a jacket adorned with the face of Argentine revolutionary Ernesto “Che” Guevara. He was executed in Bolivia in 1967 by CIA-backed Bolivian troops.

“Let us not be afraid to say it: we want change, real change, structural change,” the pope said, decrying a system that “has imposed the mentality of profit at any price, with no concern for social exclusion or the destruction of nature.”