Genesis 1:3-5 And God said, “Let there be light,” and there was light. And God saw that the light was good. And God separated the light from the darkness. God called the light Day, and the darkness he called Night. And there was evening and there was morning, the first day.

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In the Genesis 1 creation story God "separated the light from the darkness" to form days and nights. Since days and nights are a result of the Earth's rotation relative to the Sun, how did God have a day and night on the first day of creation without the Sun? If the light mentioned in verse 3 was enough to provide night and day then why did he need to wait until the fourth day to make the Sun and other stars?

Christian Answers:

• Institute For Creation Research: Sunlight Before the Sun
• Creation Ministries International: How could the days of Genesis 1 be literal if the Sun wasn’t created until the fourth day?

Secular Answers:

• Space.com: How Was the Sun Formed?
• National Geographic: Birth of the Solar System (Video)
• Skeptic's Annotated Bible: Genesis 1:3

Referenced Verses:
Genesis 1:3, Genesis 1:4, Genesis 1:5