That takes us no further forward; you have couched it in such terms as to be meaningless. Who says what is or is not 'according to this word', and by what criteria? How are we to 'prove all things'? How are we to 'try the spirits'? Unless you can come up with a coherent mechanism to achieve all of the above, all you are putting forward is ay best a circular argument.
First, that is not my criteria that I put forward but that is the criteria Paul, John and Isaiah put forward. The Bereans searched the scriptures to see if even the words of apostles were to be trusted.
Here are the mechanisms:
1. Ability to read or hear the translation of the Bible
2. Ability to follow common sense rules of interpretation
3. Ability to compare scripture with scripture within the framework of common sense rules of interpretation.
4. Willingness to seek and submit to the Holy Spirit to teach you (1 Jn. 2:29).
5. Willingness to acknowledge that the scriptures are totally sufficient for doctrine (2 Tim. 3:16-17).
These a,b,c's are summed up in Paul's command to "rightly dividing" the scriptures.
The scriptures were written in the common language of the people in order to be understood by the common but saved person. Don't need to be a scholar to understand the a,b,c's of Bible doctrine. Don't need to attend college or seminary to understand the a,b,c's of Bible doctrine. Just need to be committed to the a,b,c mechanisms above.