Yes, after the Scofield Bible put man's notes besides God's Word, now we have many many study Bibles.

I don't think it is sin to do so perhaps, but maybe it is unwise. A new believer reads the bible and then reads Scofield (or MacArthur) in the notes on the very same page as he Scripture and their minds cannot distinguish which one is God's Word and which one is Scofield's or MacArthurs notes.

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Pergamum


"If a commission by an earthly king is considered a honor, how can a commission by a Heavenly King be considered a sacrifice?"
-- David Livingstone