In Hamlet Act II Scene 2 what is the source of the line "the devil hath power
To assume a pleasing shape?"
Could it be 2 Corinthians 11:14
"... for Satan him self is transformed into an Angel of light."
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I don't know why I didn't know that this question had been answered. I must apologize for being so long in responding.
Also, I didn't understand that "the devil" in the line referred to the ghost. I thought it referred to Claudius. I can see that it might refer to the Ghost, but the Ghost does not have a pleasing shape. Claudius has the pleasing shape.