King James Bible
"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:"
On the fourth day of creation, God commands celestial bodies into existence within the expanse He created on day two. These lights are not merely decorative but purposefully placed to serve specific functions for the earth below. The primary function establishes the fundamental rhythm of time through the separation of light and darkness. This division creates the basic cycle that governs all earthly life and activity. Beyond mere illumination, these lights serve as markers for navigation, religious festivals, agricultural cycles, and the measurement of time itself. The Hebrew word for 'signs' can indicate both directional guidance and significant events, showing how the heavens were designed to orient human life temporally and spiritually.