How do you determine what "the word of God" is? Do you consider empirical evidence when doing so? Do you think "the Bible interprets itself"?
I believe the Bible can be summarily called "the word of God". I have said it contains the word of God.
As for scripture interpreting itself, this is the idea what we should not engage in eisegesis when reading scripture.
Interpretation, tongues?
1 Corinthians 14:26 NASB - What is the outcome then, brethren? When you assemble, each one has a psalm, has a teaching, has a revelation, has a tongue, has an interpretation. Let all things be done for edification.
Interpretation, scripture.
2 Peter 1:20 NASB - But know this first of all, that no prophecy of Scripture is a matter of one's own interpretation,