The inspiration of Scripture refers to that act whereby the Holy Spirit came upon the authors of Scripture, causing them to write exactly what God intended, while simultaneously preserving each author’s writing style and personality. This supernatural work of the Holy Spirit upon the human authors means that the author’s words are God’s words and therefore are reliable, trustworthy, and authoritative.
Barrett, Matthew. God’s Word Alone: The Authority of Scripture: What the Reformers Taught…and Why It Still Matters (The Five Solas Series) (p. 229). Zondervan. Kindle Edition.