[The Heavens Say:]

"The Heavens declare the glory of G-d, and the firmament proclaims His handiwork."
(Tehillim 19:2)

"Raise your eyes on high and see Who created these."
(Yeshayahu 40:26)

The glory of G-d is revealed in His world in two ways: by looking closely at the wonders of the world that He created, and through the Torah.  The performance of the heavenly bodies speaks of G-d's wisdom with greater eloquence than the spoken word.  The spheres in their periodic motions recite songs and praises with a sweet and delightful melody.

In another sense, the heavens declare the glory of G-d by bringing down rain that causes the earth to yield its produce and men to praise G-d in song.  Rain falls from the sky and we infer the existence of "a Master of the palace." At times it rains and other times it does not rain, sometimes there is little and sometimes there is much, which bears witness that the world "and its fullness" (24:1) are G-d's handiwork.

[Perek Shira, MeAm Lo'ez, Mesorah]