BOSTON (AP) - Gov. Deval Patrick said Wednesday state employee labor unions still have not agreed to job-saving concessions as he prepares to announce how he will cut $600 million from the budget. Patrick said some layoffs will be unavoidable because he plans to eliminate several programs. But he has warned he will have to cut up to 2,000 jobs if employees don't agree to furlough days or other cost-saving measures. He plans to outline his cuts by the close of business today. They are necessitated by falling tax collections linked to the national recession.

A spokesman for the State Police Association of Massachusetts, one of the labor unions negotiating with the Patrick administration, was reviewing the governor's comments before responding.

Patrick also said that while Margaret Marshall, the state's top jurist as chief of the Supreme Judicial Court, has warned against judicial cuts, her concern is not unique.

"I have tremendous respect for the legal system and the judiciary in particular and for the chief justice, who's been a friend for 20 years," the governor said. "I will say that it's not very unlike what I hear from people who are advocating for all types of spending in the state budget."

Patrick has been besieged by users of the state's human service system, who are begging him not to make any more cuts in their portion of the budget. That is difficult, however, because it consumes about half of the state's $28 billion in annual spending.

Members of the disabled community tried to underscore their point by camping out in the governor's office lobby this month so he could not enter or leave without seeing them.

On Wednesday, as he opened a conference aimed at making workplaces more accessible to the disabled, Patrick pleaded for understanding.

"I'm going to tell you simply that I see you, I hear you, I understand the need - not just as a matter of policy, but as a matter of humanity - and I am going to do the very best I can," the governor said.