2Ti 3:16 All Scripture is given by inspiration of God, and is profitable for doctrine, for reproof, for correction, for instruction in righteousness,
What is defined as
ALL Scripture when there wasn't a cannonized version? We do know the Sutras and the Vedas were Scripture at that time this was written....
And we do know that Second Timothy was definitely not scripture at the time it was written but the letter is considered scripture today.
In Second Timothy specifically prior to your quote we read:
1But mark this: There will be terrible times in the last days. 2People will be lovers of themselves, lovers of money, boastful, proud, abusive, disobedient to their parents, ungrateful, unholy, 3without love, unforgiving, slanderous, without self-control, brutal, not lovers of the good, 4treacherous, rash, conceited, lovers of pleasure rather than lovers of God— 5having a form of godliness but denying its power.
Have nothing to do with them..... 14But as for you, continue in what you have learned and have become convinced of, because you know those from whom you learned it, 15and how from infancy
you have known the holy Scriptures, which are able to make you wise for salvation through faith in Christ Jesus.
Two items bolded one that they knew the Holy Scriptures since their infancy...I wonder what those early Christians considered Holy...odds are many books that were cannonized...and a few that werent...so these were all written 20-30 years prior...which makes all of Paul's letters...not part of the holy scripture to which is referred.
Also Paul, like many today...was positive he was living in the endo of times, describing the events and the people not to associate with in those last days. Tis obvious they weren't the last days then as he warned Timothy, nor were they the last days all the hundreds of times predicted by every generation since...nor do I believe they are the last days today...
So if Paul was wrong about that....how is the rest of his writings holy and assurred to be worthy of quoting?