'Separate' in the Bible

And God said, “Let there be an expanse [of the sky] in the midst of the waters, and let it separate the waters [below the expanse] from the waters [above the expanse].”

Then God said, “Let there be light-bearers (sun, moon, stars) in the expanse of the heavens to separate the day from the night, and let them be useful for signs (tokens) [of God’s provident care], and for marking seasons, days, and years;

to rule over the day and the night, and to separate the light from the darkness; and God saw that it was good and He affirmed and sustained it.

Is not the entire land before you? Please separate [yourself] from me. If you take the left, then I will go to the right; or if you choose the right, then I will go to the left.”