precisely because the way in which the Spirit is understood can make a radical difference both to the over-all shape of the doctrine of the Trinity and to an account of the relationship between God and the world. The work of the late Professor Geoffrey Lampe, culminating in his 1976 Bampton lectures God as Spirit,3 is the most weighty post-war English contribution to the doctrine of the Holy Spirit. Lampe’s fundamental contention is that ‘Spirit’ properly describes, not one of the