If, as has been shown in the earlier part of this discussion, Scripture is divine in its origin, character and authority, it must bear the marks of divinity. If the heavens declare the glory of God and therefore bear witness to their divine Creator, the Scripture as God’s handiwork must also bear the imprints of his authorship. This is just saying that Scripture evidences itself to be the Word of God; its divinity is self-evidencing and self-authenticating. The ground of faith in Scripture as the Word of God is therefore the evidence it inherently contains of its divine authorship and quality.
John Murray, “The Attestation of Scripture,” The Infallible Word (Phillipsburg: Presbyterian and Reformed Publishing Co., 1946), 46. (italics mine)