'Murder' in the Bible

or if he struck him with his hand out of hatred so that he died, then the killer is certainly to be put to death for murder. The avenger of blood is to put him to death when he meets him."

and the blood avenger finds him outside the town of refuge where he had fled and kills him, the blood avenger is not to be found guilty of murder.

You are to receive no ransom for the life of a killer who is guilty of murder; instead, he is to die.