In each of these examples, figurative language and descriptions are used in order to make comparisons between different things easier to understand. Since each of these verses are commonly quoted and alluded to, the metaphors used are important to understand. So, not only are these metaphors integral in The Bible, but show up in many other texts.
It is a blessing and a curse to not know exactly what or how God is, we yearn for knowledge because living in the unknown is terrifying for us