But still I think the same events are repeated again in 1:14, as the light, day and night was already there.
Unless for some reason the light was turned into darkness after the 3rd day.
1:14 "And God said, Let there be lights in the firmament of the heaven to divide the day from the night; and let them be for signs, and for seasons, and for days, and years."
Remember the creation is to be narrated from the perspective of the earth's surface. Note the difference between the two accounts:
Gen 1:3-5 "Let there be light"; and there was light. 4 And God saw the light, that it was good; and God divided the light from the darkness. God called the light Day, and the darkness He called Night. So the evening and the morning were the first day.
In verse 3, God describes the creation of conditions permitting the light to penetrate the earth's cloud-filled surface. This made the surface of the earth translucent but not yet transparent. Similar to the difference of being in a thick fog during the daylight hours versus the evening. Verse 4 re-establishes the earth's 24 hr rotation on its axis described by the division of light [day] from darkness [night].
Gen 1:14-18 "Let there be lights in the firmament of the heavens to divide the day from the night; and let them be for signs and seasons, and for days and years;15 And let them be for lights in the firmament of the heaven to give light upon the earth: and it was so 16 And God made two great lights; the greater light to rule the day, and the lesser light to rule the night: he made the stars also 17 And God set them in the firmament of the heaven to give light upon the earth,18 And to rule over the day and over the night, and to divide the light from the darkness: and God saw that it was good.
In verse 14 (fourth day), God is being very specific about certain "lights" that
became visible from the dry surface of the earth. These specific lights were created to serve "for signs and seasons, and for days and years."
On the fourth day, God made visual observation of the sun, moon, and stars possible from the
earth's dry surface. Before this, the earth's cloud-cover did not permit an observer on the earth's dense cloud surface to see these heavenly bodies. God diminished the cloud-cover so that clear days would be possible, and thus heavenly bodies could be used to keep track of times and seasons.
The first part of verse 14 as well as 15-18 appear to say that God created the sun, moon, and stars on the fourth day. The New King James compounds the problem by incorrectly beginning verse 16 with "Then God made," implying continuity of action. The King James, American Standard, the Revised Standard, and Young's Literal translations all correctly translate this verse with "and" which is consistent with the Hebrew.
Further, the Hebrew asah, translated "made" in verse 16, is in the verb form that denotes completed action. This means that the sun, moon, and stars could have been created that day
or any previous time. Verse 1 clearly reveals these heavenly bodies had been created long before the re-creation week began. Therefore, the first part of verse 14 and 15-18 are parenthetical statements that indicate the sun, moon, and stars had been made sometime in the past. And in the last part of verse 14, God is simply illustrating for what and how we are to use them.