Here are many references/links to Mr. Rochester symbolizing Satan:

Isaiah 14:12-20

“You have been cut down to the earth,

You who have weakened the nations!"

When Jane first meets Mr. Rochester he is tumbling down to earth.

2 Corinthians 11:14

No wonder, for even Satan disguises himself as an angel of light.

“I had hardly ever seen such a handsome youth…and should have shunned them as one would fire, lightning and anything else that is bright but antipathetic" (133-134)

When meeting Mr. Rochester again, he is surrounded by fire and speaks of blasphemy.

“Come to the fire, said the master”, “a novice not worship her priest! That sounds blasphemous” (p145)

Their next meeting Mr. Rochester is in his “after dinner mood” and is described as having “dark eyes”, “great dark eyes” (p 152-153)

Speaking of his previous womanizing ways, he talks of “sweet, fresh pleasure” and calls Jane a “neophyte” (p160)

The serpent said to the woman, You surely will not die! For God knows that in the day you eat from it your eyes will be opened, and you will be like God, knowing good and evil. Genesis 3:1-5

“I believe it was inspiration rather than temptation…it is no devil…it has put on the robes of an angel of light”

Jane says, “it is not a true angel”, to which Mr. Rochester replies, “how do you know between a seraph of the fallen abyss and a messenger from the eternal throne? Between a guide and a seducer” (p160)

Luke 10:18

He replied, “I saw Satan fall like lightning from heaven.”

When Jane and Mr. Rochester finally embrace in love, the great horse-chestnut in the yard is split by lightning (p196)

Engaged to be married she states “My future husband was becoming to me my whole world…my hope of heaven. He stood between me and every thought of religion, as an eclipse intervenes between man and the broad sun. I could not, in those days, see God for His creature: of whom I had made an idol. (p316)

Satan is also a deceiver, and Mr. Rochester certainly was deceptive in marrying Jane, with his crazy wife in the attic.

Later in the book, she hears him call out to her, it’s a supernatural moment in the book. It’s not god, it’s her man, Mr. Rochester, who symbolizes satan. He is now blind, and dependant on her. Jane attains godhood in her religion of the self by their reunification at the end.