How can one say that about the Word of God? If one takes Islam seriously, then every word in the Koran is divine.
By focus on the intention rather than the literal meaning?

Koran lacks that kind of flexibility, which is imho responsible for a lot of problems with modern Islam.
You're still applying your own interpretation on what the Qur'an is and what it says, rather than to look at different interpretations. In other words, you're telling us what the Qur'an is rather than saying it's what you think it is.

By the way, this is part of the old discussion of the Mu‘tazilites who believed in a created Qur'an in the tenth century. There's also contemporary discussion about this issue. You're kind of taking the position of Ibn Taymiyya and Ibn Hanbal here by denying any kind of flexibility in Qur'anic interpretation.