We rightly divide the Bible, seeking to understand those doctrines which are for us today, separating out those things which God does not have in operation during this current dispensation of grace. This does not mean that we ignore any of the Bible, for all of God's word is valuable on some level, either doctrinal, spiritual, or historical. We can then, on one of these levels, learn from all of our Bible. We realize thought, that while all the Bible was written for us, not all the Bible was written to us. Not every instruction contained in the Word of Truth is for us today.