I call passages clear or obscure according as their meaning is inferred easily or with difficulty in relation to the context, not according as their truth is perceived easily or the reverse by reason. We are at work not on the truth of passages, but solely on their meaning. We must take especial care, when we are in search of the meaning of a text, not to be led away by our reason in so far as it is founded on principles of natural knowledge (to say nothing of prejudices): in order not to confound the meaning of a passage with its truth, we must examine it solely by means of the signification of the words, or by a reason acknowledging no foundation but Scripture. I will illustrate my meaning by an example. The words of Moses, "God is a fire" and "God is jealous," are perfectly clear so long as we regard merely the signification of the words, and I therefore reckon them among the clear passages, though in relation to reason and truth they are most obscure: still, although the literal meaning is repugnant to the natural light of reason, nevertheless, if it cannot be clearly overruled on grounds and principles derived from its Scriptural "history," it, that is, the literal meaning, must be the one retained: and contrariwise if these passages literally interpreted are found to clash with principles derived from Scripture, though such literal interpretation were in absolute harmony with reason, they must be interpreted in a different manner, _i.e._, metaphorically. If we would know whether Moses believed God to be a fire or not, we must on no account decide the question on grounds of the reasonableness or the reverse of such an opinion, but must judge solely by the other opinions of Moses which are on record. In the present instance, as Moses says in several other passages that God has no likeness to any visible thing, whether in heaven or in earth, or in the water, either all such passages must be taken metaphorically, or else the one before us must be so explained. However, as we should depart as little as possible from the literal sense, we must first ask whether this text, God is a fire, admits of any but the literal meaning--that is, whether the word fire ever means anything besides ordinary natural fire. If no such second meaning can be found, the text must be taken literally, however repugnant to reason it may be: and all the other passages, though in complete accordance with reason, must be brought into harmony with it. If the verbal expressions would not admit of being thus harmonized, we should have to set them down as irreconcilable, and suspend our judgment concerning them. However, as we find the name fire applied to anger and jealousy (see Job xxxi. 12) we can thus easily reconcile the words of Moses, and legitimately conclude that the two propositions God is a fire, and God is jealous, are in meaning identical.