Final answer:
Rev. Hale tries to get John Proctor to confess to being a witch to save John Proctor's life.
Step-by-step explanation:
Rev. Hale tries to get John Proctor to confess to being a witch to save John Proctor's life. In the context of the Salem Witch Trials, confessing to being a witch was seen as a way to avoid execution. By convincing John Proctor to confess, Rev. Hale hopes to spare him from the harsh punishment of being deemed a witch and being hanged.