Throughout the course of "The Crucible," does Reverend Hale change?

At the onset of his arrival, Revered Hale enters Salem
with confidence carrying books on the subjects of spirits and witches.  He takes the
subject of witchcraft very seriously, and even comments about how it is best not to jump
to conclusions on the matter. Hale insists that he will discover the truth in his
investigation; however, he enters Salem somewhat jaded, not knowing the full scope of
the property disputes and struggles for power within the church/community. Throughout
the course of his investigation, and the court proceedings, Hale initially believes the
girls, and their claims of witchcraft against others. Hale’s belief in the girls’
accusations is not entirely a fault all his own, he entered the town a bit over zealous.
The first change we see sparked in Hale is in Act Two when Proctor confesses to Hale
that Abigail told him that the sickness was not a result of witchcraft.  After Proctor
tells Hale this, and agrees to testify, they learn that Goody Nurse, Goody Corey, and
Elizabeth Proctor have been accused.  Hale tells John that he will testify on
Elizabeth’s behalf in court, but also seems to be awestruck by the supposed “proof” of
Elizabeth’s crime.  Near the end of Act Two, after pleading for patience of the courts
with John Proctor, Hale makes this statement to Giles and Francis, “I Pray God open up
our eyes.” The next time Hale is seen(in Act Three), it seems as though his prayers have
been answered, because he seems to be closer to the truth than he has been at any other
point in the play.  Hale pleads for careful consideration from the courts as he says
that he has “signed away…soul[s]…” and begs Danforth for careful consideration in the
case that Proctor and Mary Warren, Corey, and Nurse have some to plead.  Towards the end
of Act Three, Hale becomes increasingly vocal in his support for the evidence Proctor
presents and his insistence on the complete fabrication of the accusations by Abigail,
even at one point insisting that she has “gone wild.”  At the very end of Act Three,
Hale denounces the court proceedings, quits the court, and then exits slamming the door
behind him.  Interestingly enough, in Act Four, we see Hale return to Salem to “plead”
with those condemned to die.  He makes the statement that he thinks that God would not
punish the condemned for “confessing” to a crime they did not commit any more than he
would for them dying for a crime they didn’t commit. He tries to explain to the accused
that even though they know the truth, they will have to lie to save their lives, and he
encourages them to do so.  In the end, we see Reverend Hale as a man who is a hundred
and eighty degrees different, figuratively speaking, than he was at the start of the
play.  Ironically enough, even though he disagrees with the court, and knows the truth
about the witch trails, as minister who initially confirmed the validity of the later to
be known false accusations, he has no authority to save those affected by his
misjudgment. He holds himself responsible, and maybe he should, but regardless of any
impending doom that awaits those condemned, he still knows that their deaths are without
justification.  At the end we see, as John Proctor called him earlier in the play, a
truly broken minister; one who now has pause to question the very foundation of
everything that was only a short time ago so certain to him upon his initial arrival in
Salem.