'Dew' in the Bible

Let my teaching fall like rainand my word settle like dew,like gentle rain on new grassand showers on tender plants.

He said about Joseph:May his land be blessed by the Lordwith the dew of heaven’s bountyand the watery depths that lie beneath;

So Israel dwells securely;Jacob lives untroubledin a land of grain and new wine;even his skies drip with dew.