Anglican Archbishop Desmond Tutu reprimanded a rowdy crowd at Nelson Mandela's memorial service on Tuesday.
"I want to show the world we can come out here and celebrate the life of an icon," a visibly angry Tutu shouted at the crowd at the FNB Stadium.
"You must show the world that we are disciplined. I want to hear a pin drop."
As he spoke, some people in the crowd started talking, and Tutu pointed at them and shouted.
"We promise God that we are going to follow the example of Nelson Mandela," he said.
Earlier, ANC deputy president Cyril Ramaphosa also reprimanded the crowd for drowning out speakers by shouting, singing and playing music.
Tutu spoke briefly in Afrikaans, saying: "God, we ask that you bless our country greatly. You have given us a wonderful blessing in this icon of forgiveness."
Afterwards, ANC deputy president Cyril Ramaphosa closed proceedings.
Singer PJ Powers and a band sang "Nelson Mandela, there is no one like you" as the crowd filtered out of the stadium.
Earlier, Gauteng premier Nomvula Mokonyane and Ramaphosa made a vote of thanks.