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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.
— Genesis 1:14 · The Bible

Behind the line May contain spoilers.
Our reading
An editorial interpretation.
The heavenly lights are given several jobs: separating day from night and marking seasons, days and years. Time takes shape through those distinctions. The repeated 'for' builds a rhythm of purposes, making the passage feel both expansive and carefully ordered.
Context reviewed