How I became a Textualist Originalist

When I first came across the concept of constitutional originalism it seemed pretty straightforward. Things should be determined according to their original meaning. Raised a good Evangelical I am familiar with similar issues in regards to scripture. Authorial intent is what grounds meaning. What Paul meant in the first century Greco-Roman or Mediterranean context is what determines how we are to understand the Letter to Phillipi or Galatia etc.

But then I came across the concept of Textualism…and this seemed absurd. How can texts mean things outside of what their…