The theology of the Cross (Latin: Theologia Crucis)[1] or staurology[2] (from Greek stauros: cross, and -logy: "the study of")[3] is a term coined by the theologian Martin Luther[1] to refer to theology that posits the cross as the only source of knowledge concerning who God is and how God saves. It is contrasted with the theology of glory[1] (theologia gloriae),[1] which places greater emphasis on human abilities and human reason.
The law of God, the most salutary doctrine of life, cannot advance man on his way to righteousness, but rather hinders him.