And he called the light Day, and the darkness Night; and there was evening and morning one day.

“He did not say "night and day," but "one day," with reference to the name of the light. He did not say the "first day; "for if he had said the "first" day, he would also have had to say that the "second" day was made. But it was right to speak not of the "first day," but of "one day," in order that by saying "one," he might show that it returns on its orbit and, while it remains one, makes up the week.”

“Since the birth of the sun, the light that it diffuses in the air, when shining on our hemisphere, is day; and the shadow produced by its disappearance is night. But at that time it was not after the movement of the sun, but following this primitive light spread abroad in the air or withdrawn in a measure determined by God, that day came and was followed by night. Evening is then the boundary common to day and night; and in the same way morning constitutes the approach of night to day. It was to give day the privileges of seniority that Scripture put the end of the first day before that of the first night, because night follows day: for, before the creation of light, the world was not in night, but in darkness. It is the opposite of day which was called night, and it did not receive its name until after day. Thus were created the evening and the morning. Scripture means the space of a day and a night, and afterwards no more says day and night, but calls them both under the name of the more important: a custom which you will find throughout Scripture. Everywhere the measure of time is counted by days, without mention of nights. The days of our years, says the Psalmist. Few and evil have the days of the years of my life been, Genesis 47:9 said Jacob, and elsewhere all the days of my life. Thus under the form of history the law is laid down for what is to follow. And the evening and the morning were one day. Why does Scripture say one day the first day? Before speaking to us of the second, the third, and the fourth days, would it not have been more natural to call that one the first which began the series? If it therefore says one day, it is from a wish to determine the measure of day and night, and to combine the time that they contain. Now twenty-four hours fill up the space of one day— we mean of a day and of a night; and if, at the time of the solstices, they have not both an equal length, the time marked by Scripture does not the less circumscribe their duration. It is as though it said: twenty-four hours measure the space of a day, or that, in reality a day is the time that the heavens starting from one point take to return there. Thus, every time that, in the revolution of the sun, evening and morning occupy the world, their periodical succession never exceeds the space of one day. But must we believe in a mysterious reason for this? God who made the nature of time measured it out and determined it by intervals of days; and, wishing to give it a week as a measure, he ordered the week to revolve from period to period upon itself, to count the movement of time, forming the week of one day revolving seven times upon itself: a proper circle begins and ends with itself. Such is also the character of eternity, to revolve upon itself and to end nowhere. If then the beginning of time is called one day rather than the first day, it is because Scripture wishes to establish its relationship with eternity. It was, in reality, fit and natural to call one the day whose character is to be one wholly separated and isolated from all the others. If Scripture speaks to us of many ages, saying everywhere, age of age, and ages of ages, we do not see it enumerate them as first, second, and third. It follows that we are hereby shown not so much limits, ends and succession of ages, as distinctions between various states and modes of action. The day of the Lord, Scripture says, is great and very terrible, Joel 2:11 and elsewhere Woe unto you that desire the day of the Lord: to what end is it for you? The day of the Lord is darkness and not light. Amos 5:18 A day of darkness for those who are worthy of darkness. No; this day without evening, without succession and without end is not unknown to Scripture, and it is the day that the Psalmist calls the eighth day, because it is outside this time of weeks. Thus whether you call it day, or whether you call it eternity, you express the same idea. Give this state the name of day; there are not several, but only one. If you call it eternity still it is unique and not manifold. Thus it is in order that you may carry your thoughts forward towards a future life, that Scripture marks by the word one the day which is the type of eternity, the first fruits of days, the contemporary of light, the holy Lord's day honoured by the Resurrection of our Lord. And the evening and the morning were one day. But, while I am conversing with you about the first evening of the world, evening takes me by surprise, and puts an end to my discourse. May the Father of the true light, Who has adorned day with celestial light, Who has made the fire to shine which illuminates us during the night, Who reserves for us in the peace of a future age a spiritual and everlasting light, enlighten your hearts in the knowledge of truth, keep you from stumbling, and grant that you may walk honestly as in the day. Romans 13:13 Thus shall you shine as the sun in the midst of the glory of the saints, and I shall glory in you in the day of Christ, to Whom belong all glory and power for ever and ever. Amen.”

“"And God divided the light and the darkness, and God called the light day and he called the darkness night." It did not say here "God made the darkness," because darkness is merely the absence of light. Yet God made a division between light and darkness. So too we make a sound by crying out, and we make a silence by not making a sound, because silence is the cessation of sound. Still in some sense we distinguish between sound and silence and call the one sound and the other silence.… "He called the light day, and he called the darkness night" was said in the sense that he made them to be called, because he separated and ordered all things so that they could be distinguished and receive names.”

“יום אחד THE FIRST DAY (literally, one day) — According to the regular mode of expression used in this chapter it should be written here “first day”, just as it is written with regard to the other days “the second”, “the third”, “the fourth”. Why, then, does it write אחד “one”? Because the Holy One, blessed be He, was then the Only One (Sole Being) in His Universe, since the angels were not created until the second day. Thus it is explained in Genesis Rabbah (Genesis Rabbah 3:8).”

““And He called” – The hey of layla is added, and it [i.e., the word] is accented on the penultimate syllable, and it is always masculine. “Evening” [erev - close in meaning to darkness, and it’s called thus since forms are mixed together [nitarvu i.e., indistinct]. “Morning” [boker] – the opposite of evening, for a person is able to check [l’vaker, i.e., to distinguish] between forms. The meaning of “one day” is referring to the rotation of the sphere. There is a secret to the midrash of six thousand. And after it has said that the light is called day, it isn’t possible that the evening should be called day, rather its explanation is “it was evening and also morning of Day One”, for if it was [referring to] the evening and morning(g of one day, what would be the meaning of “a second day”?”

“AND G-D CALLED THE LIGHT DAY. The verse states that time was created, and G-d made the length of the day and the length of the night. The purport of the word vayikra (And He called) is [to indicate that] since Adam later gave names [to all the beasts, the fowl, etc.], it states that those things which were made before his existence were given names by G-d. This is the opinion of Rabbi Abraham ibn Ezra. The correct interpretation is that the matter of calling a name here indicates the division which bounded them when they assumed their form. Thus did the Rabbis say: “[G-d said to the light,] ‘The day shall be your boundary,’ [and to darkness He said,] ‘The night shall be your boundary.’” AND THERE WAS EVENING AND THERE WAS MORNING. There was evening and there was morning of one day. The beginning of the night is called erev [which also means “mingling”] because shapes of things appear confused in it, and the beginning of the day is called boker [which also means “examining”] because then a man can distinguish between various forms. This coincides with the explanation of Rabbi Abraham ibn Ezra. By way of the simple explanation of Scripture, it could not have said, [And there was evening and there was morning] “the first day,”. See Rashi who says that according to the regular mode of expression it should have really said “the first day.” He explains, however, the expression “one day” on the basis of the Midrash: It is “because the Holy One, blessed be He, was then the Only One (the Sole Being) in His universe, since the angels were not created until the second day.” One day thus means “the day of the One Being.” It is this interpretation of Rashi that Ramban alludes to when he comments that according to the simple meaning of Scripture it could not have said, “the first day.” because the second had not yet been made; “the first” precedes a “second” in number or degree but both exist, whereas “one” does not connote the existence of a second. Some scholars explain that one day is a reference to the rotation of the sphere upon the face of the whole earth in twenty-four hours, as every moment thereof is morning in some different place and night in the opposite place. thus means that the entire day consists of evening and morning occurring simultaneously in different places. If so, the verse alludes to that which will take place in the firmament after the luminaries will be placed in the firmament of the heavens.”

“"And G-d called the light 'day'" - even though there was not yet "time" [per se], the light and the darkness behaved in the fashion that they behave in time by us, and we call each now by the name "day" or "night". "And it was evening and it was morning" - even though He separated the light and the darkness so that they would prevail during separate, alternating periods with [need for] rotation of a [heavenly] sphere, He separated them gradually, in such a manner that there was between them a time of "evening" before the onset of night, and a time of "morning" before the onset of day.”

“And God called the light day, and the darkness he called night,.... Either by the circulating motion of the above body of light, or by the rotation of the chaos on its own axis towards it, in the space of twenty four hours there was a vicissitude of light and darkness; just as there is now by the like motion either of the sun, or of the earth; and which after this appellation God has given, we call the one, day, and the other, night: and the evening and the morning were the first day: the evening, the first part of the night, or darkness, put for the whole night, which might be about the space of twelve hours; and the morning, which was the first part of the day, or light, put also for the whole, which made the same space, and both together one natural day, consisting of twenty four hours; what Daniel calls an "evening morning", Dan 8:26 and the apostle a "night day", Co2 11:25. Thales being asked which was first made, the night or the day, answered, the night was before one day (m). The Jews begin their day from the preceding evening; so many other nations: the Athenians used to reckon their day from sun setting to sun setting (n); the Romans from the middle of the night, to the middle of the night following, as Gellius (o) relates; and Tacitus (p) reports of the ancient Germans, that they used to compute not the number of days, but of nights, reckoning that the night led the day. Caesar (q) observes of the ancient Druids in Britain, that they counted time not by the number of days, but nights; and observed birthdays, and the beginnings of months and years, so as that the day followed the night; and we have some traces of this still among us, as when we say this day se'nnight, or this day fortnight. This first day of the creation, according to James Capellus, was the eighteenth of April; but, according to Bishop Usher, the twenty third of October; the one beginning the creation in the spring, the other in autumn. It is a notion of Mr. Whiston's, that the six days of the creation were equal to six years, a day and a year being one and the same thing before the fall of man, when the diurnal rotation of the earth about its axis, as he thinks, began; and in agreement with this, very remarkable is the doctrine Empedocles taught, that when mankind sprung originally from the earth, the length of the day, by reason of the slowness of the sun's motion, was equal to ten of our present months (r). The Hebrew word "Ereb", rendered "evening", is retained by some of the Greek poets, as by Hesiod (s), who says, out of the "chaos" came "Erebus", and black night, and out of the night ether and the day; and Aristophanes (t), whose words are, chaos, night, and black "Erebus" were first, and wide Tartarus, but there were neither earth, air, nor heaven, but in the infinite bosom of Erebus, black winged night first brought forth a windy egg, &c. And Orpheus (u) makes night to be the beginning of all things. (Hugh Miller (1802-1856) was the first person to popularise the "Day-Age" theory. In his book, "Testimony of the Rocks", that was published in the year after his untimely death, he speculated that that the days were really long ages. He held that Noah's flood was a local flood and the rock layers were laid down long periods of time. (v) This theory has been popularised by the New Scofield Bible first published in 1967. (m) Laert. in Vita Thaletis. p. 24. (n) Plin. Nat. Hist. l. 2. c. 77. (o) Noct. Attic. l. 3. c. 2. (p) De Mor. German. c. 11. (q) Commentar. l. 6. p. 141. (r) Vid. Universal History, vol. 1. p. 79. (s) ', &c. Hesiod. Theogonia. (t) &c. Aristophanes in Avibus. (u) Hymn. 2. ver. 2. (v) Ian Taylor, p. 360-362, "In the Minds of Men", 1984, TEV Publishing, P.O. Box 5015, Stn. F, Toronto, Ontario, M4Y 2T1.”