In fact, that's just about all I talk about. Not because I don't have anything else to say. It's just that I believe the lens with which we view any discussion must be the lens of the freedom we have been given in Christ. However, many discussions are put through a different lens - the lens of the Law. We are quick to speak of the "to do" in scripture all the while forgetting to speak about the "done" of the Gospel.
Our natural inclination (Christians and non-Christians) is to view everything through the lens of the Law. It is the way the world works. A system of fairness and justice resonates with us, so the law is appealing. We know where we stand with the Law. Scripture even points out that the Law is written on our hearts - it is our default mode. We have to be reminded that Christ has fulfilled the Law on our behalf so that we now operate apart from the Law. Grace has freed us from the Law in every way.
Ursinus, primary author of the Heidelberg Catechism, said that the Law-Gospel distinction has "comprehended the sum and substance of the sacred Scriptures," are "the chief and general divisions of the holy scriptures, and comprise the entire doctrine comprehended therein." Michael Horton provides further insight;
"To confuse them is to corrupt the Faith at its core. While the Law must be preached as divine instruction for the Christian life, it must never be used to shake believers from the confidence that Christ is their "righteousness, holiness and redemption" (1 Cor. 1:30). The believer goes to the Law and loves that Law for its divine wisdom, for it reveals the will of the One to whom we are now reconciled by the Gospel. But the believer cannot find pardon, mercy, victory, or even the power to obey it, by going to the Law itself any more after his conversion than before. It is still always the Law that commands and the Gospel that gives."
The Bible is God speaking to us. He speaks with two words, always. He begins with a word and he ends with a word. It is the theme of the Bible. It is the plan of Redemption. So, I can't think of a better way to speak here than to speak about all things the way God does - with His first word Law, and His final word, Gospel.