elf made them. Hence, in
each work, after the words, "It was done," some act of God is
expressed by some such words as, "He made," or, "He divided," or,
"He called."

Reply Obj. 6: According to Augustine (Gen. ad lit. iv, 22, 30), by
the "evening" and the "morning" are understood the evening and the
morning knowledge of the angels, which has been explained (Q. 58,
A. 6, 7). But, according to Basil (Hom. ii in Hexaem.), the entire
period takes its name, as is customary, from its more important part,
the day. An instance of this is found in the words of Jacob, "The
days of my pilgrimage," where night is not mentioned at all. But the
evening and the morning are mentioned as being the ends of the day,
since day begins with morning and ends with evening, or because
evening denotes the beginning of night, and morning the beginning of
day. It seems fitting, also, that where the first distinction of
creatures is described, divisions of time should be denoted only by
what marks their beginning. And the reason for mentioning the evening
first is that as the evening ends the day, which begins with the
light, the termination of the light at evening precedes the
termination of the darkness, which ends with the morning. But
Chrysostom's explanation is that thereby it is intended to show that
the natural day does not end with the evening, but with the morning
(Hom. v in Gen.).

Reply Obj. 7: The words "one day" are used when day is first
instituted, to denote that one day is made up of twenty-four hours.
Hence, by mentioning "one," the measure of a natural day is fixed.
Another reason may be to signify that a day is completed by the
return of the sun to the point from which it commenced its course.
And yet another, because at the completion of a week of seven days,
the first day returns which is one with the eighth day. The three
reasons assigned above are those given by Basil (Hom. ii in Hexaem.).
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TREATISE ON MAN (QQ. 75-102)
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QUESTION 75

OF MAN WHO IS COMPOSED OF A SPIRITUAL AND A CORPOREAL SUBSTANCE: AND
IN THE FIRST PLACE, CONCERNING WHAT BELONGS TO THE ESSENCE OF THE SOUL
(In Seven Articles)

Having treated of the spiritual and of the corporeal creature, we now
proceed to treat of man, who is composed of a spiritual and corporeal
substance. We shall treat first of the nature of man, and secondly of
his origin. Now the theologian considers the nature of man in relation
t