Back to the OP - John Bunyan (best I can tell) knew neither Greek nor Hebrew and only read a few other books in his life (Practice of Piety, etc.) besides the scriptures and look what he produced!

I personally do not believe the average saint needs more than the scriptures and a good English dictionary...I like Webster's 1828. Later good commentaries, etc. are, of course, a great help.

If the saint reads the scriptures, seeks to define the words from the context first, then from the scriptures themselves, and then from the dictionary with prayer trusting the Holy Spirit then this saint has done more than any or at last most AV Corrector have done or will do and glean more from the word than these "enlightened ones" with all their Greek-Hebrew, lexicons, manuscripts, modern versions ,etc.

God bless