Jude, however, does not say that Enoch wrote, only
that he prophesied. This could have occurred through oral preaching, and Jude
could have had this prophecy of Enoch by a sure tradition, just as Paul had the
names of the magicians Jannes and Jambres (2 Tim. 3:8). (Johann Gerhard, On
the Nature of Theology and on Scripture [trans. Richard J. Dinda; Saint
Louis, Miss.: Concordia Publishing House, 2009], 43)