TRIPOLI, Libya — It was just a passing reference to marriage in a leader’s soberly delivered speech, but all week it has unsettled women here as well as allies abroad.

In announcing the success of the Libyan revolution and calling for a new, more pious nation, the head of the interim government, Mustafa Abdel-Jalil, also seemed to clear the way for unrestricted polygamy in a Muslim country where it has been limited and rare for decades.

It looked like a sizable step backward for women at a moment when much here — institutions, laws, social relations — is still in play after the end of Col. Muammar el-Qaddafi’s 42 years of authoritarian rule.

"A sizable step backwards"? Is Islam not [7] grand, noble, pure, etc. etc.? Is even the New York Times becoming Islamophobic?

In his speech, Mr. Abdel-Jalil declared that a Qaddafi-era law that placed restrictions on multiple marriages, which is a tenet of Islamic law, or Shariah, would be done away with. The law, which stated that a first wife had to give permission before others were added, for instance, had kept polygamy rare here.

“This law is contrary to Shariah and must be stopped,” Mr. Abdel-Jalil told the crowd, vowing that the new government would adhere more faithfully to Shariah. The next day he reiterated the point to reporters at a news conference: “Shariah allows polygamy,” he said. Mr. Abdel-Jalil is known for his piety.