'Separation' in the Bible

And God saw the light, that [it was] good, and God caused [there to be] a separation between the light and between the darkness.

And God said, "Let there be a vaulted dome in the midst of the waters, and {let it cause a separation between the waters}."

So God made the vaulted dome, and he caused a separation between the waters which [were] under the vaulted dome and between the waters which were over the vaulted dome. And it was so.

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,

and to rule over day and over night, and to make a separation between the light and the darkness; and God seeth that it is good;

The Lord said to her,“[The founders of] two nations are in your womb;And the separation of two nations has begun in your body;The one people shall be stronger than the other;And the older shall serve the younger.”