It seems to be popular today--including on this board--to label what is commonly called "Replacement Theology" a heresy. For those of you who beleve it to be heresy, can you elaborate what it is about the belief that makes it heretical? If it is, that would make for an awful lot of heretics throughout church history, who most Christians have historically regarded as heroes of the faith. From their writings, I think we can show that Justin Martyr, Martin Luther, and George Mueller (just to name a few) held to concepts which today would commonly be called Replacement Theology. Were these men heretics? Or is this label being thrown around lightly?