Originally given as three addresses at the IFES Conference at Schloss Mittersill in 1971.

I. The constant necessity for definition; recent history and changes; re-examining our name; the danget of wrong divisionos; succumbing to the ecumenical spirit; 'the Holy spirit, not doctrine'; Non-evangelical opposition to ecumenicism -- II. Guiding principles: (1) The preservation of the Gospel; guiding principles: (2) learning from history; guiding principles: (3) maintaining negatives; guiding principles: (4) no subtractions or additions; evangelical priorities; watchfulness; distrust of reason; the place of reason; other marks of an evangelical; uppermost concerns -- III. Foundational and secondary truths; justifying a vital distinction; the necessity of opposition to doctrinal indifferentism; Scripture: the only and full authority; creation, not evolution; the fall and evil; one way of salvation; the church: contemporaty issues; secondary truths not essectial to unity.