Maybe not. Give me your definition for it then.
It does not mean we do not read other material or study books outside the scripture, but it means there must be support for it in the scripture to verify the information"
So I can read the traditional passover practice from a jewish source and see it in light of OT practice and revelation, and know and understand the last passover meal as jesus would have celebrated it..
It is interesting that the greatest biblical scholars are Protestants perhaps because we hold the scripture as our measuring rod .. something Catholics do not have