JERUSALEM—Thousands gathered in Jerusalem for the funeral of the four victims of the attack on a Jewish school in Toulouse, France.

Rabbi Jonathan Sandler, 30, his two young sons Gabriel and Arieh, and Myriam Monsonego, the 7-year-old daughter of the Ozar Hatorah school’s headmaster, were buried Wednesday morning as police in Toulouse remained in a standoff with the chief suspect in the attack.

The school reopened Wednesday for the first time since Monday’s attack, in which a man riding a motorbike opened fire outside the school where students were waiting to enter the building at the start of the school day.

“Your grief, your pain is ours, too,” French Foreign Minister Alain Juppe said at the funeral. “All of France is in shock.” Juppe said that France would work to fight against anti-Semitism.

Prior to the funeral, the parents of Myriam Monsonego and the pregnant wife and mother of the Sandlers arrived at a Jerusalem funeral home to say their final goodbyes to their loved ones, whose bodies arrived in Israel following a memorial service at Charles de Gaulle Airport in Paris, with President Nicolas Sarkozy and Prime Minister Francois Fillon in attendance, Haaretz reported.

“This was an abhorrent and unacceptable murder that can hardly be described,” Juppe said. “I came to express the solidarity of the French people with the people of Israel, which felt that its children were murdered. The blood of our two peoples was spilled in this murder.”