The Old Testament in Hebrew (which was the native language of the people of God of old), and the New Testament in Greek (which, at the time of the writing of it, was most generally known to the nations), being immediately inspired by God, and, by His singular care and providence, kept pure in all ages, are therefore authentical; so as, in all controversies of religion, the Church is finally to appeal unto them. But, because these original tongues are not known to all the people of God, who have right unto, and interest in the Scriptures, and are commanded, in the fear of God, to read and search them, therefore they are to be translated in to the vulgar language of every nation unto which they come, that, the Word of God dwelling plentifully in all, they may worship Him in an acceptable manner; and, through patience and comfort of the Scriptures, may have hope.
Resources
Inspiration, Inerrancy, Preservation by James White
The Preservation of Scripture by R. C. Sproul
The Providence of God in Preserving Scripture by Seni Adeyemi
The Preservation of the Canon by Francis Turretin
The Preservation, Interpretation and Supreme Judge of Scripture by Robert Shaw
Exposition and Theology of WCF 1.8: The Preservation of Scripture (Group Study) @Monergism
Multimedia
The Preservation of Scripture (MP3) by Rev. David Murray
Of the Holy Scripture (Ch.1, Sec.8) by Greg Bahnsen
The 1689 on Scripture (1.7-8) (MP3) by Doctrine and Devotion
Episode 1.8: The Preservation of Scripture (MP3) the Jerusalem Chamber
The Preservation of Scripture (YouTube) by Bob Burridge