The view of Scripture itself in Hebrews is most striking. For Hebrews, God speaks to us directly and personally (Heb. 1:1-2) in promises (12:26) and comfort (13:5) with divine testimony (10:15) to and through the great "cloud of witnesses" of OT revelation (see 12:1 which refers to the inscripturated testimonies of Hebrews 11). In Scripture, the Father speaks to the Son (1:5-6; 5:5), the Son to the Father (2:11-12; 10:5) and the Holy Spirit to us (3:7; 10:15-16). This speaking of God in the words of Scripture has the character of testimony which has been legally validated (2:1-4; so Greek bebaios in v. 2) which one ignores to his peril (4:12-13; 12:25). This immediate identification of the biblical text with God's speech (cf. Gal. 3:8, 22) is hard to jibe with the reputed feebleness of the biblical authors.
The highlighted part intrigues me, and I've posted it here, hoping I'll be able to find it again.
Concerning Sparks' book, Baugh shows decisively that we can trust the Bible. It is written in human words, but these were superintended by the Holy Spirit. The Bible does have unity and is not a mishmash of human fallible ideas.