Then the men feared Yahweh exceedingly; and they offered a sacrifice to Yahweh, and made vows.
We now then understand why Jonah says that the sailors and passengers offered sacrifices. We must, at the same time, remember what I have lately said, that sacrifice was, as it were, a symbol of Divine worship: for even from the beginning this notion prevailed among all, that sacrifices were to be offered to none but to God; and heathens in all ages had no other opinion of sacrifices, but that they thus manifested their piety towards their gods. Since then sacrifices have been from the beginning offered to God alone, it follows, that they at this day are wholly inexcusable who join associates to God, and offer their sacrifices to mortals or to angels. How can this be borne in Christians, since heathens have ever confessed that they regarded those as gods to whom they were wont to offer their sacrifices? Now then, since God declares that the chief sacrifice to him is invocations as we read in Psalms 1:1, the whole of religion under the Papacy must be perverted, as they pray not only to God but even to creatures: for they hesitate not to flee to Peter or to Paul, yea, to their own saints, real and fictitious, in the same manner as to the only true God. Inasmuch, then, as they rob God of this chief right, we see that they tread under foot the whole of religion by this sacrilege. Since, then, heathen men testified that they worshipped Jehovah, the God of Israel, by their external sacrifice, let us learn at this day not to transfer the rightful honor of God to creatures; but let this honor of being alone prayed to, be wholly and entirely reserved for him; for this, as we have said is the chief and the most valuable sacrifice which he demands and approves. 