The Israeli parliament's finance committee agreed yesterday to provide $1.3 million for purchase of lands on the occupied West Bank that would become new Jewish settlements.

Committee chairman Shlomo Lorenz refused to disclose how the funds would be used beyond saying purchases would include lands in the Elon Moreh area -- where a settlement was dismantled several weeks ago after a court ruling that Arab lands had been confiscated illegally.

In Cairo, Egyptian Prime Minister Mustafa Khalil denounced another Israeli decision taken Sunday to allow eventual Jewish settlement in the cities -- as opposed to unpopulated areas -- of the West Bank.

The official Middle East News Agency published a message from Khalil to Secretary of State Cyrus Vance saying the Israeli measures were "illegal and detrimental to chances of realizing a just Middle East peace."

On Tuesday, the State Department expressed serious concern about the moves.

At the U.N. Human Rights Commission meeting in Geneva, delegates voted overwhelmingly for resolutions charging Israel with rights violations in the occupied Arab territories. Israel has been a consistent target of the commission's majority for the last several years.

In other Middle East developments:

A Soviet passenger ship passed through the Suez Canal Tuesday and the Cairo newspaper Al Akhbar said it carried 1,200 Cuban troops en route to Marxist South Yemen. No source was given for that conclusion. Canal authorities in Ismailia said it was not known whether the ship carried ordinary passengers or troops and its destination was unknown.

In Beirut, Palestinian guerrillas battled Lebanese Army regulars after a dispute outside an Army barracks and the French Embassy's military attache, Lt. Col. Jean-Louis Delamare, was slightly wounded in the cross fire.

Three persons were reported dead in clashes between rival rightist militias in northern Lebanon.

James T. McIntyre Jr., head of the U.S. Office of Management and Budget, arrived in Tel Aviv with a congressional delegation to study Israeli economic problems.

U.S. Ambassador to the United Nations Donald McHenry arrived in Cairo and said he looked forward to a "substantial" exchange of views with President Anwar Sadat on a comprehensive Middle East peace. McHenry came to Egypt after talks in Kuwait and Saudi Arabia, which he described as "useful."

The seven-nation tour by McHenry is his first since succeeding Andrew Young at the U.N. post last September.