'Sky' in the Bible

But in truth I say to you, there were many widows in Israel in the days of Elijah, when the sky was shut for three years and six months while a great famine took place over all the land.

"The sower went out to sow his seed, and while he was sowing, {some seed} fell on the side of the path and was trampled under foot, and the birds of the sky devoured it.

And Jesus said to him, "Foxes have dens and birds of the sky [have] nests, but the Son of Man has no place to lay [his] head."

Hypocrites! You know how to evaluate the appearance of the earth and the sky, but how [is it] you do not know how to evaluate this present time?

It is like a mustard seed that a man took [and] sowed in his own garden, and it grew and became a tree, and the birds of the sky nested in its branches."