What is the meaning of Genesis 1:14?

* The two F.O.G. Bibles & Commentary below are currently a work in progress.

And God said, “Let there be lights in the expanse of the sky to distinguish between the day and the night, and let them be signs to mark the seasons and days and years.

Berean Standard Bible (BSB)

God said, “Let there be lights in the expanse of sky to divide the day from the night; and let them be for signs, and for seasons, and for days and years;

World English Bible (WEB)

And God{H430} said{H559}{(H8799)}, Let there be lights{H3974} in the firmament{H7549} of the heaven{H8064} to divide{H914}{(H8687)} the day{H3117} from the night{H3915}; and let them be for signs{H226}, and for seasons{H4150}, and for days{H3117}, and years{H8141}:

Strong's King James

(14) Then GOD spoke, "Let there be luminaries (light-bearers) in the protective shield of the skies to separate the day from the night and let them be for signs, appointed times, days and years

The F.O.G*

The F.O.G Paraphrase

And God saith, ‘Let luminaries be in the expanse of the heavens, to make a separation between the day and the night, then they have been for signs, and for seasons, and for days and years,

Young's Literal Translation