We had a fascinating discussion about time, tense and Biblical Hebrew in the class I'm taking at B'nai Zion yesterday. I hope I don't botch this, but if I understood correctly, Dr. J said that in Biblical Hebrew the grammatical construction of a word or phrase might look like it's future tense, but it refers to the past. As well, other words might appear to be completed actions but really the phrase refers to an incomplete action.
It gives the scriptures a sort of timeless quality with the grammar itself indicating that God is always and has always been and will always be working. Pretty cool stuff.