Dividing Rightly the Word of Truth Part 2

OT/Old covenant/before the finished work; NT/New covenant/after the finished work.  The blood that was shed not only dealt with sin, but also the sinner! In light of this, we need to study the bible as it pertains to the finished work, so that we can rightly divide the Word of Truth. What was so before the cross, changed when Jesus shed His blood on the cross.