'Sun' in the Bible

So Joab and Abishai pursued Abner {when} the sun went down. And they came to the hill [country] of Ammah, which [is] {before Giah} [on] the way to the wilderness of Gibeon.

Then all the people came to give David food. Still on that day, David swore, "{May God punish me} if I taste food or anything before the sun goes down."

Like the light of [the] morning when the sun rises, shining with no clouds, [bringing] vegetation from the earth apart from rain.'