Yes, you did. God being light is a metaphor, as should be clear from the reading of the text. The Bible opens with the creation of the universe, by God's spoken Words light sprang forth. Reminds me of people who claim 'God is love' because a verse in the Bible says so...sure, God is love, but He is also just, merciful, vengeful, holy, and many other things. Accuracy matters for science so we can make silly gadgets, how much more important is accuracy concerning matters of the soul?