It was important to the growth of plants and a successful harvest (Hg 1:10).
In the Bible dew and rain are spoken of together as of great value (1 Kgs 17:1).
During the exodus, dew was a source of sustenance (Ex 16:13–21; Nm 11:9).
Figuratively “dew” was sometimes used as a symbol of blessing; for example, Isaac blessed Jacob by asking that “the dew of heaven” be given to him (Gn 27:28; cf. Dt 33:13 kjv; Mi 5:7).
Dew was also a symbol of refreshment, renewal, or prosperity (Jb 29:19; Hos 14:5).
A king’s favor was said to be “like dew upon the grass” (Prv 19:12).