U2 changed the lyrics of their 1984 song “Pride (In the Name of Love)” dedicated to civil rights icon Dr. Martin Luther King Jr. Hamas Sunday at the Sphere in Las Vegas to honor Israeli victims of the recent Supernova desert dance festival assault.

Bono sang, “Early morning, Oct. 7, the sun is rising in the desert sky/Stars of David, they took your life but they could not take your pride.”

The original lyrics of the song read “Early morning, April four/Shot rings out in the Memphis sky/Free at last, they took your life/They could not take your pride.”

While on stage, Bono told the crowd “Sing for our brothers and sisters — who they themselves were singing at the Supernova Sukkot festival in Israel. “ He continued: “We sing for those. Our people, our kind of people, music people. Playful, experimental people. Our kind of people. We sing for them.”

On Saturday, backed by a barrage of rockets, Hamas militants stormed from the blockaded Gaza Strip into nearby Israeli towns, killing dozens and abducting others at the Tribe of Nova music festival in an unprecedented surprise attack during a major Jewish holiday.

The attack will go down in Israeli history as the country’s worst civilian massacre. As of Monday, Israel’s rescue service Zaka said paramedics had recovered at least 260 bodies. Israeli Prime Minister Benjamin Netanyahu says that Israel has “only started” a fierce offensive in the Gaza Strip in response to an unprecedented Hamas attack. Netanyahu delivered the pronouncement in a nationally televised address as Israel pressed ahead with a third day of heavy airstrikes in Gaza.

“We have only started striking Hamas,” he said. “What we will do to our enemies in the coming days will reverberate with them for generations.”

Israel increased airstrikes on the Gaza Strip and sealed off the Palestinian territory from food, fuel, and other supplies in retaliation for a deadly incursion by Hamas militants, as the toll rose to nearly 1,600 dead on both sides.

Hamas mounted its own escalation on Monday, pledging to kill captured Israelis if its attacks targeted civilians without warnings.

During the performance, Bono also said, “In the light of what’s happened in Israel and Gaza, a song about non-violence seems somewhat ridiculous, even laughable, but our prayers have always been for peace and for non-violence… But our hearts and our anger, you know where that’s pointed. So sing with us… and those beautiful kids at that music festival.”