Definition: ESMAC4: Esmac refers to a set of sacred scriptures that were written in ancient languages, which later became part of Christian tradition. Definition: The term "esmac4" appears in the Bible to refer to a collection of sacred texts that had been created through various writing styles and languages over time. These texts were originally used for religious purposes by different communities, and the word "esmac" implies that the documents were collected together as one, which is why it's called "esmac4."