In the USA, some Christian leaders are debating the nature and place of social justice. One side wants to define the Gospel as a proclamation that does not entail social justice. The other side affirms that the Gospel alone saves while also emphasizing those saved by the Gospel will necessarily live by the Gospel, which means doing justice. As might be obvious, the difference here is slight but significant enough to warrant discussion.* My observation here is that the debate partly revolves around how the Old Testament applies to the church today. By grasping this point, parts of the dispute become much clearer. And it is worth exploring how the Old Testament relates to us today because this knowledge will help believers live their life as they ought to (2 Tim 3:16). The discussion matters.