The first three chapters of the book of Hebrews provide a wonderful insight into the authority of Scripture and its divine inspiration.
In all three chapters, various verses from the Old Testament are quoted (Psalms, 2 Samuel, Deuteronomy and Isaiah) as testimonies of Christ and what He’s done.
What you may have missed about this (I certainly did), is that in each chapter, a different person of the Trinity is described as the one uttering the referenced Scripture. Note:
Hebrews 1:5:
For to which of the angels did He ever say, “You are my Son, today I have begotten you.”?
”He” here is referencing the Father, which you see in the first two verses.
Hebrews 2:11-13:
Verse 11 says:
For both He who sanctifies and those who are sanctified are all from one Father; for which reason He is not ashamed to call them brethren, saying…
This text then goes on to reference several verses from the Old Testament. Who is “He” that is doing the “saying” here?
The Son.
Hebrews 3:7:
Therefore, just as the Holy Spirit says…
This one is even clearer. Again, referencing the Old Testament Scriptures, now it is the Holy Spirit speaking.
Affirmation of Scriptural authority and the Trinity
Of course, the deconstructionists will likely still reject Hebrews altogether, but I think this is an excellent little affirmation of the Trinity and the divine authority of Scripture.