20. And Noah builded an altar unto the Lord. As Noah had given many proofs of his obedience, so he now presents an example of gratitude. This passage teaches us that sacrifices were instituted from the beginning for this end, that men should habituate themselves, by such exercises, to celebrate the goodness of God, and to give him thanks. The bare confession of the tongue, yea, even the silent acknowledgment of the heart, might suffice for God; but we know how many stimulants our indolence requires. Therefore, when the holy fathers, formerly, professed their piety towards God by sacrifices, the use of them was by no means superfluous. Besides, it was right that they should always have before their eyes symbols, by which they would be admonished, that they could have no access to God but through a mediator. Now, however, the manifestation of Christ has taken away these ancient shadows. Wherefore, let us use those helps which the Lord has prescribed. (281) Moreover, when I say that sacrifices were made use of, by the holy fathers, to celebrate the benefits of God, I speak only of one kind: for this offering of Noah answers to the peace-offerings, and the first-fruits. But here it may be asked, by what impulse Noah offered a sacrifice to God, seeing he had no command to do so? I answer: although Moses does not expressly declare that God commanded him to do it, yet a certain judgment may be formed from what follows, and even from the whole context, that Noah had rested upon the word of Gods and that, in reliance on the divine command, he had rendered this worship, which he knew, indubitably, should be acceptable to God. We have before said, that one animal of every kind was preserved separately; and have stated for what end it was done. But it was useless to set apart animals for sacrifice, unless God had revealed this design to holy Noah, who was to be the priest to offer up the victims. Besides, Moses says that sacrifices were chosen from among clean animals. But it is certain that Noah did not invent this distinction for himself since it does not depend on human choice. Whence we conclude, that he undertook nothing without divine authority. Also immediately afterwards, Moses subjoins, that the smell of the sacrifice was acceptable to God. This general rule, therefore, is to be observed, that all religious services which are not perfumed with the odour of faith, are of an ill-savor before God. Let us therefore know, that the altar of Noah was founded in the word of God. And the same word was as salt to his sacrifices, that they might not be insipid.
(281) “ Quare adminiculis utamur,” etc. The French translation has it, “ Et pourtant usons,” etc. “And, nevertheless, let us use,” etc. The meaning of the sentence seems to be, that, as the fathers, in obedience to God, used sacrifices, which were afterwards abolished as being of no value, so ought we to avail ourselves of those aids (adminicula) which might seem to be of no importance, had not God enjoined them. — Ed.