Once again, you cannot. Specifically in the opinion put out by the Court it was the text of the verse that was not allowed. In effect the Juror testified in the case but not in court, it simply is not allowed. Even if the Juror were quoting from Memory the same problem exists.
It would be the same with any other reference material, memorized or otherwise. If a Doctor were on a Jury in a Medical case they could not give information to the jury that was not put into evidence regardless of how salient to the case it may be. Jurists cannot testify, nor are they investigators. They are not allowed to investigate, try, testify, or any other thing. They are only allowed to make decisions based on given testimony and evidence.