Many times in scripture natural things are commonly used and accommodated to explain spiritual things
The figurative element is very prominent in the Scriptures, especially so in the Old Testament, where natural things are commonly used and accommodated to explain spiritual things, suiting its instructions to man’s present state, in which he cannot see the things of God except through the glass of nature. Every Hebrew word has a literal sense and stands for some sensible object, and therefore conveys a comparative idea of some impalpable object. While in the body we must receive information via our senses. We cannot of ourselves form the least idea of any Divine or celestial object but as it is compared to and illustrated by something earthly or material. Inward realities are explained by outward phenomena, as in
“rend your heart, and not your garments, and turn unto the Lord your God” (Joel 2:13),
and “blessed are they which do hunger and thirst after righteousness.” Spiritual mercies are set before our eyes under their familiar but expressive pictures in nature, as in
“For I will pour water upon him that is thirsty, and floods upon the dry ground: I will pour My Spirit upon thy seed, and My blessing upon thine offspring” (Isaiah 44:3),
“Drop down, ye heavens, from above, and let them bring forth salvation” (Isaiah 45:8).
Arthur W. Pink-Interpretation of the Scriptures