We should never presume to occupy a pulpit unless we believe in this God. How dare we speak, if God has not spoken? By ourselves we have nothing to say. To address a congregation without any assurance that we are bearers of a divine message would be the height of arrogance and folly. It is when we are convinced that God is light (and so wanting to be known), that God has acted (and thus made himself known), and that God has spoken (and thus explained his actions), that we must speak and cannot remain silent.
— John Stott, Between Two Worlds