R.F. Weidner's Biblical Theology of the Old Testament
You can purchase Weidner's book here: https://www.justandsinner.org/home/weidners-biblical-theology-is-now-available
In this video, we discuss the Biblical Theology of Lutheran theologian Revere Franklin Weidner, whose work on the subject precedes that of Geerhardus Vos.
Youtube Video
