'Shadows' in the Bible

When Gaal saw the army, he said to Zebul, "Look, people [are] coming down from the top of the mountains!" And Zebul said to him, "{The shadows of the mountains look like people to you}."

My face is red because of weeping, and deep shadows [are] on my eyelids,

Until the day breathes and the shadows flee, turn, my beloved! {Be like} a gazelle or {young stag} on the cleft mountains.

Until the day breathes and the shadows flee, I will go to the mountain of the myrrh, to the hill of the frankincense.

{Sanctify} war against her. Arise, and let us attack at noon. Woe to us, for the day turns, for [the] shadows of evening are lengthened.