If the Bible is metaphorical then perhaps so is the God of the Bible

One doesn't have to study deeply to get the basic message: They sinned and suffered. When you get to specifics, "what is the deal with the nakedness?" you can spout any sort of reasoning. This passage pictures a spiritual battle, so study up on the religions that apply. Read on the Oracle at Delphi (wikipedia is fine) Read Frazier's The Golden Bough. Read the Sumerian Creation stories. They teach on talking serpents, wearing vegetable matter such as fig leaves, ribs, and the tree of life. Once you study them, you see that the issue was which religion. I enjoyed chapter 34 of The Golden Bough, Human Representatives of Attis. Frazier speculates that the man dressed in vegetation as Attis was sacrificed. By the way, the Hebrew word for naked is also translated rudely dressed. Whether you are naked or dressed in a thong bikini when you go to meet the pope, you are considered improperly dressed. Whether they were naked or rudely dressed is not the issue. It is that they were not dressed properly and what was the proper dress is really the issue. Notice God rejected the fig clothes and dressed them in animal skins. Study and it will make much more sense.

There are certain rules that Christians are supposed to follow. When we read that Jesus is the lamb of God that takes away the sin of the world, we have to compare it to other scriptures. Is there any evidence that Jesus was a sheep? No. Is there any scriptures that talk about lambs taking away sin? Yes. This is a metaphor. We use this logic when we look at other verses like the trees clapping their hands. Do trees have hands? No. Well, this looks like a metaphor. I grant you that there are some verses that are hard to tell. Many verses in Revelation are debated. Generally, verses should be understood that the writer meant to read them literally.
There is another point that even more focuses on what the original writer meant. Even today, many scientists who absolutely believe that the earth orbits the sun will say sunrise was at 6:24 am. Many verses were written according to the convention of the culture. Some even say the sun rises, just as we do. One version of the conventions of the culture is the writer's viewpoint (the sun looks like it rises) When looking at the conventions of the culture, reading other sources can help. There is several proposals as to the meaning of the eye of a needle. One group maintains that there was a gate into Jerusalem that a camel couldn't get through and it was called the needle or the eye of the needle. Others say it was a literal statement on how a camel can't fit through a real needle's eye. By any of these rules, the writers meant the resurrection of Jesus to be understood as a literal statement.