By definition of the word,Scripture, graphḗ γραφή,in Koine Greek, Scripture is merely referring to writing,or something written.
So yes,as I said, Paul's (Saul's) letters,Epistles,we're just that.
Whereas writing God ordained Scripture is, θεόπνευστος,
theopneustos, "God Breathed, is pheromenoi , " carried along by the Holy Spirit", when committing to recording the writings from that source.
Paul,Saul, writing in 2 Timothy 3:16, was referring to the Tanakh,the Hebrew Old Testament.
Then by your definition should we throw out the New Testament?
Seeing as it was only Paul "writing" in 2Tim, and we cannot be sure it is actually God inspired then he claiming the OT was God inspired may or may not be correct as it is only Paul's opinion.
Rather circular if you ask me.