Leupold Genesis part 24 the six days

Taking this creation account as a whole, how shall we arrange the work of the six days? Is there any possibility of grouping within the six days? Most schemes that are advanced are not entirely perfect, but they may yet contain a generous element of truth. It seems as though the best pattern or the categories that man employs are not of a big enough mould to serve for the creation as God brings it about. Let a few of these subdivisions be submitted. Thomas Aquinas (1225-1274), mentioned by Strack, suggested two triads of days, the first three concerned with works of division, the second three with works of embellishment. Yet the third day's work in its second half certainly comes under the head of embellishment. A second suggestion notices the manifest parallel between the two triads of days, pointing to the fact that both the first and the fourth days are concerned with a work that begins on high with light (or light bearers). Then in the work of the second and the fifth days the work drops to a lower level, namely, to the firmament and to the birds of the air. Lastly, on the third and the sixth days the creative work moves on the level of the earth and accomplishes a double objective, namely on the third, separation of dry land and water and the production of green things, whereas on the sixth day comes the creation of land animals and man. The correspondence of the two triads from this point of view cannot be denied, but to try to imagine it as entirely adequate would overlook the work of the fifth day, which is double in character and drops not only to the level of the creation of the birds of the air but also, unfortunately, to the submarine level of the creation of fishes of the sea. More satisfactory is Koenig's arrangement which sees four deficiencies or four instances of relative incompleteness listed in a definite order and sees the successive creative acts as removing these four in inverse order, as we shall presently demonstrate.