'Dew of Heaven' in the Bible

May God give you the dew of heaven, and the good things of the earth, and grain and wine in full measure:

Then Isaac his father made answer and said to him, Far from the fertile places of the earth, and far from the dew of heaven on high will your living-place be:

But keep its broken end and its roots still in the earth, even with a band of iron and brass; let him have the young grass of the field for food, and let him be wet with the dew of heaven, and let his part be with the beasts.

That they will send you out from among men, to be with the beasts of the field; they will give you grass for your food like the oxen, and you will be wet with the dew of heaven, and seven times will go by you, till you are certain that the Most High is ruler in the kingdom of men, and gives it to any man at his pleasure.

That very hour the order about Nebuchadnezzar was put into effect: and he was sent out from among men, and had grass for his food like the oxen, and his body was wet with the dew of heaven, till his hair became long as eagles' feathers and his nails like those of birds.

And he was sent out from among the sons of men; and his heart was made like the beasts', and he was living with the asses of the fields; he had grass for his food like the oxen, and his body was wet with the dew of heaven, till he was certain that the Most High is ruler in the kingdom of men, and gives power over it to anyone at his pleasure.