liberty before God; as though their freedom of spirit necessarily exempted them from all carnal servitude. Again, because even in those constitutions which seem to pertain to the spiritual kingdom, there may possibly be some deception, it is necessary to discriminate between these also; which are to be accounted legitimate, as according with the Divine word, and which, on the contrary, ought not to be received among believers. Of civil government I shall treat in another place. Of ecclesiastical laws also I forbear to speak at present; because a full discussion of them will be proper in the Fourth Book, where we shall treat of the power of the Church. But we shall conclude the present argument in the following manner: The question, which, as I have observed, is in itself not very obscure or intricate, greatly perplexes many, because they do not distinguish with sufficient precision between the external jurisdiction and the court of conscience. The difficulty is increased by Paul’s injunction to obey magistrates “not only for wrath, but also for conscience’ sake;”[254] from which it should follow, that the conscience also is bound by political laws. But if this were true, it would supersede all that we have already said, or are now about to say, respecting spiritual government. For the solution of this difficulty, it will be of use, first, to know what conscience is. And the definition of it must be derived from the etymology of the word. For as, when men apprehend the knowledge of things in the mind and understanding, they are thence said _scire_, “to know,” whence is derived the word _scientia_, “science” or “knowledge;” so when they have a sense of Divine justice, as an additional witness, which permits them not to conceal their sins, or to elude accusation at the tribunal of the supreme Judge, this sense is termed _conscientia_, “conscience.” For it is a kind of medium between God and man; because it does not suffer a man to suppress what he knows within himself, but pursues him till it brings him to conviction. This is what Paul means by “their conscience also bearing witness, and their thoughts accusing, or else excusing, one another.”[255] Simple knowledge might remain, as it were, confined within a man. This sentiment, therefore, which places man before the Divine tribunal, is appointed, as it were, to watch over man, to observe and examine all his secrets, that nothing may remain enveloped in darkness. Hence the old proverb, Conscience is as a thousand witnesses. For the same reason Peter speaks of “the answer of a good conscience towards God,”[256] to express our tranquillity of mind, when, persuaded of the favour of Christ, we present ourselves with boldness in the presence of God. And the author of the Epistle to the Hebrews expresses absolution or freedom from every future charge of sin, by “having no more conscience of sin.”[257]