Michael Jackson's family told a judge Tuesday that they were not seeking revenge but want the doctor who killed the superstar to receive a stiff sentence that serves as a warning to opportunistic doctors.

"The Bible reminds us that men cannot do justice, they can only seek justice," the family said in a statement read by attorney Brian Panish. "That is all we can ask as a family, and that is all we ask for here."

The statement went on to say, "We are not here to seek revenge. There is nothing you can do today that will bring Michael back."

Panish did not specifically request the maximum term of four years in jail for Murray but said the cardiologist should be punished in a way that reminds physicians that they cannot sell their services to the highest bidder.

Superior Court Judge Michael Pastor was expected to sentence Murray later in the day after hearing from lawyers on both sides of the case.

Murray was convicted of involuntary manslaughter after a six-week trial that presented the most detailed account yet of Jackson's final hours but left many questions about Murray's treatment of the superstar with an operating-room anesthetic as he battled chronic insomnia.