But we are thus reminded, that we ought always to beware of the intrigues of Satan, when they appear under the cover of truth. When, therefore, our minds are disposed to piety, Satan is ever to be feared, lest he should stealthily suggest to us what may turn us aside from our duty; for we see that some leave the Church because they require in it the highest perfection. They are indignant at vices which they deem intolerable, when they cannot be corrected: and thus, under the pretext of zeal, they separate themselves and seek to form for themselves a new world, in which there is to be a perfect Church; and they lay hold on those passages in which the Holy Spirit recommends purity to the Church, as when Paul says, that it was purchased by Christ, that it might be without spot or wrinkle. As then these are inflamed with a zeal so rigid that they depart from God himself and violate the unity of the Church; so also there are many proud men who despise the Church of God, because it shines not forth among them in great pomp; and they think that God does not dwell in the midst of us, because we are obscure and of no great importance, and also because they regard our few number with contempt.