His point on reference tools is spot on, as have used all of those tools that he listed over the years, and never bother to check if the author was a calvinist or not while using them!Again, Fin, note that TC did not provide any on-line lexicons, and disparaged the use of online study tools. Pay no attention is disparagement posts offering home cooking sources. Yes a book shelf of resources, such more than one bible version, an Exhaustive Concordance, a Bible Dictionary and other study tools certain can supplement you efforts.
Note the use of the word "enable?" No one can respond to the gospel unless they hear the gospel, therefore hearing the gospel "enables" a person to respond. Everybody probably agrees with that.
But can everyone respond? What about the first soil of Matthew 13. Those folks have been disabled. Thus even if they "hear it" they do not understand and therefore cannot respond. Now the second, third and fourth soils can hear and respond, but not all embrace the gospel with all their heart. Were they unable or did they choose to not engage fully? Food for thought Fin.
For example, Thayers lexicon is outdated now, but for its time was top notch, and he was a unitarian I believe, but he allowed the greek terms to speak what the scriptures used, even though he no doubt disagreed with those definitions at times!