The root for "distinction" is the latin prefix dis which means "apart" or "off, away".* This is significant for our discussion on the nature of law and gospel, for if a distinction between the two is warranted, it will always be rooted in keeping the two "apart, off, away." To distinguish between law and gospel is to keep them away from each other. This act of itself is neutral and can be either good or bad depending on what is intended in the separating. At hand right now is whether the law and the gospel should be distinguished for the salvation of the individual. Can a person enter into covenant with Christ without making this distinction? Is this distinction to be made by us or has it been made by God for us, or both? Does the distinction require a seperation of the two entities "as far as the east is from the west" (Luther) or is some manner of proximity kept?
What is at stake in this matter is the never-ending life or damnation of both me and the hearers, so those who consider this a philosophic abstraction ought to remember that God dwells in the abstract and the unreachable, and it is from the abstract that the Word of forgiveness comes to us (John 1). With this in mind we must suffer the abstracts and pay careful attention.
I want to finish this post with another scripture to chew on: "All who rely on observing the law are under a curse, for it is written: "Cursed is everyone who does not continue to do everything written in the Book of the Law." (Gal 3:10)
* Taken from http://www.etymonline.com/index.php?term=distinguish