Internal Testimony
...was weakened and identified with the so-called illumination of the Holy Spirit by which the intellect is enabled to note the marks and criteria of the divinity of Holy Scripture. Faith no longer connects directly and immediately with Scripture but is the product of insight into the marks of truth and divinity it bears. Inserted between Scripture and faith, then, are the marks of the truth of Scripture.
Herman Bavinck, Reformed Dogmatics: Prolegomena, ed. John Bolt, trans. John Vriend, vol. 1 (Grand Rapids, MI: Baker Academic, 2003), 584.