NAZARETH, Israel — Choruses of beeping horns echoed through this Arab city in northern Israel as word spread that an alliance of Arab parties had received 14 seats in the next Parliament, making it the third-largest bloc.

Long-divided Arab parties’ forming a coalition was unprecedented; so was the size of their new bloc, offering a good reason for Nazareth and other Arab towns to rejoice.

“This is a great achievement,” said Ahmad Tibi, a veteran Arab politician who was elected to Parliament on Tuesday, speaking at the alliance’s headquarters in Nazareth. Men and women cheered and waved flags bearing the alliance’s slogan, “The Will of the People.”

“We will have before us great challenges. We will fight racism, we will fight fascism; we will defend our rights, regardless of the government,” he said. “Today, we are stronger.”