These affirmations of nearness are emphasized in the introduction (Revelation 1:1, 3) and conclusion (Revelation 22:6, 7, 10, 12, 20). For an illuminating treatment of Revelation from the vantage point of mainline scholarship, see Adela Yarbro Collins: The Apocalypse (Wilmington, Delaware: Michael Glazier, 1979); Crisis and Catharsis: The Power of the Apocalypse (Philadelphia: Westminster, 1984); and her essay in the Anchor Bible Dictionary (New York: Doubleday, 1992), vol. 5, pp. 694–708.