Genesis 46:2

2.And God spake unto Israel. In this manner, God proves that the sacrifice of Jacob was acceptable to him, and again stretches out his hand to ratify anew his covenant. The vision by night availed for the purpose of giving greater dignity to the oracle. Jacob indeed, inasmuch as he was docile and ready to yield obedience to God, did not need to be impelled by force and terror; yet, because he was a man encompassed with flesh, it was profitable for him that he should be affected as with the glory of a present God, in order that the word might penetrate more effectually into his heart. It is, however, proper to recall to memory what I have said before, that the word was joined with it; because a silent vision would have profited little or nothing. We know that superstition eagerly snatches at mere spectres; by which means it presents God in a form of its own. But since no living image of God can exist without the word, whenever God has appeared to his servants, he has also spoken to them. Wherefore, in all outward signs, let us be ever attentive to his voice, if we would not be deluded by the wiles of Satan. But if those visions, in which the majesty of God shines, require to be animated by the word, then they who obtrude signs, invented at the will of men, upon the Church, exhibit nothing else than the empty pomps of a profane theater. Just as in the Papacy, those things which are called sacraments, are lifeless phantoms which draw away deluded souls from the true God. Let this mutual connection, then, be observed, that the vision which gives greater dignity to the word, precedes it; and that the word follows immediately, as if it were the soul of the vision. And there is no question that this was an appearance of the visible glory of God, which did not leave Jacob in suspense and hesitation; but which, by removing his doubt, firmly sustained him, so that he confidently embraced the oracle.