I beg to differ,
When God wrote on Genesis 6 days and got rested on the seventh, it literally meant so.
Most Lutherans would take this out of context and claim that it is an era but when you dig deeper in into the original language of the Genesis, and also cross reference it with new testaments and other verses in the Bible,
you will realize God meant 6 days.
Exodus 20:11
Hebrews 4:4
Exodus 31:17
and with reference to poetic writing, i believe God meant ALL SCRIPTURE in
2 Timothy 3:16 and not SOME scripture..
"All scripture is given by inspiration of God, and is profitable for doctrine, for reproof, for correction, for instruction in righteousness:"
I believe that when God wrote clearly certain locations, and certain places, He meant it so.
Revelation 22:19
" And if any man shall take away from the words of the book of this prophecy, God shall take away his part out of the book of life, and out of the holy city, and from the things which are written in this book"
Just because God's prophecies have yet to take place, we should not claim it will not.. Else, we contradict ourselves in faith, altering God's word to suit our human believes?
It is best we take God's word seriously... word by word..
We should give God glory and not undermine it..
You are failing to take into account that there are three main forms of writing in the Bible: Narrative, Poetry, Discourse.
Paul's letters are all Discourses, hence why they're direct arguments. Genesis is not a discourse but rather a narrative.
If you want to go on the supposition that recognizing the existence of literary styles is "suiting to human beliefs", then i ask the same back to you: are we not imposing our human standards in an even more blatant manner by insisting on our modern understanding?
Genesis is intentionally vague. It's a recognized form of narrative according to the Hebrews. They're inspired words of God crafted with art.
For them what kind of Day is not important. What's important for the authors was the creation process and how God relates to us.