Is There a Radical Break Between the Old and New Testaments?

Anabaptists tend to have the most radical divorce between old and new testaments. Lutherans are somewhere in the middle on these points. The people of god are commanded to be gracious, forgiving,. Theyre commanded to love, to be merciful, to show care toward foreigners. So when we see commands in the new testament, they are not something radically divorced from the old testament.