Modern exponents of the doctrine of creation skate as lightly as possible over the thesis that God is Maker of heaven as well as of earth. And St. Matthew's habit of referring to the Kingdom of Heaven does not commend itself as important to most scholars in their elucidation of the Kingdom of God. For Barth, whose doctrine of Providence was outlined in the last issue of this Journal, “God's Kingdom which comes to us on earth is the Kingdom of Heaven; and when God's will is done on earth as it is in heaven, that is not only a divine event, i.e. one established, governed, and consummated by God, but also a heavenly event, i.e. one worked out in the presence, power, co-operation, and co-revelation of heaven on earth” (p. 558). Though this is a secondary aspect of the event, a theology which ignores it is gravely impoverished. And a proper recognition of this aspect entails a further recognition that man's encounter with God in His saving act is also an encounter with the angels of God, the creatures who inhabit heaven. Schleiermacher wrote a notable appendix Of the Angels (§§42–43 in the Second Edition of The Christian Faith) which dismissed the topic from Protestant theology for 150 years, but now it has come back in a treatise which will surely rank with the other two great monuments of angelology, the Celestial Hierarchy of Pseudo-Dionysius, and the Summa Theologica of Aquinas (1.50–64, 106–114), both of which are sympathetically evaluated.