In The Crucible, what does John Proctor do when his wife Elizabeth is arrested?

John Proctor becomes very angry when Cheever arrives to arrest his wife. They have been visited by the Reverend Hale and by Giles Corey prior to Mr. Cheever's appearance with the arrest warrant, and as the Proctors learn of the events at court that day, they grow increasingly concerned about their own position; Elizabeth tells John she thinks Abigail will accuse her because she wants her dead. Cheever arrives as the conversation has become very...

John Proctor becomes very angry when Cheever arrives to arrest his wife. They have been visited by the Reverend Hale and by Giles Corey prior to Mr. Cheever's appearance with the arrest warrant, and as the Proctors learn of the events at court that day, they grow increasingly concerned about their own position; Elizabeth tells John she thinks Abigail will accuse her because she wants her dead. Cheever arrives as the conversation has become very heated, as Corey reveals the arrest of Rebecca Nurse and other pious members of the community.

When Cheever sees the poppet Mary gave to Elizabeth, he is convinced the arrest warrant is justified, because this seems to be evidence of the accusation made by Abigail at court earlier in the day, when she felt a stabbing pain and a needle was found in her stomach. John tries to get Mary Warren to expose the lie, and when Elizabeth learns the extent of Abigail's vicious plan, she exclaims that she must be "ripped out of the world" and thereby causes Cheever to further suspect her desire to harm Abigail. At this, Proctor becomes angry and rips the warrant out of Cheever's hand, ordering him to leave his home. Hale tries to calm Proctor, saying that if she is innocent the court will spare her. But Proctor sees the hypocrisy afoot and speaks strongly: 

"Why do you never wonder if Parris be innocent, or Abigail? Is the accuser always holy now? Were they born this morning as clean as God‘s fingers? I‘ll tell you what‘s walking Salem—vengeance is walking Salem. We are what we always were in Salem, but now the little crazy children are jangling the keys of the kingdom, and common vengeance writes the law! This warrant‘s vengeance; I will not give my wife to vengeance!" 

Elizabeth agrees to go with Cheever, believing her innocence and her husband's determination, as well as his good reputation, will help them avoid conviction. Elizabeth is distraught, not wanting to leave her children, but John takes her hands to comfort her. John vows: "I will fall like an ocean on that court! Fear nothing, Elizabeth."