13. And when they had departed How many days elapsed from the departure of the Magi, till Joseph was ordered to flee into Egypt, is not known, nor is it of much importance to inquire: only it is probable that the Lord spared Mary, till she was so far recovered from childbirth as to be able to perform the journey. It was a wonderful purpose of God, that he chose to preserve his Son by flight. The mind of Joseph must have been harassed by dangerous temptations, when he came to see that there was no hope but in flight: for in flight there was no appearance of divine protection. Besides, it was very difficult to reconcile the statement, that he who was to be the Savior of all, could not be preserved without the exertion of a mortal man. But, in preserving the life of his Son, God maintained such reserve, as to give some indications of his heavenly power, and yet not to make it so manifest as to prevent it from being concealed under the appearance of weakness: for the full time of glorifying Christ openly was not yet come. The angel predicts an event which was hidden, and unknown to men. That is an evident proof of divine guidance. But the angel orders him to defend the life of the child by flight and exile. This belongs to the weakness of flesh, to which Christ was subjected.
We are here taught, that God has more than one way of preserving his own people. Sometimes he makes astonishing displays of his power; while at other times he employs dark coverings or shadows, from which feeble rays of it escape. This wonderful method of preserving the Son of God under the cross teaches us, that they act improperly who prescribe to God a fixed plan of action. Let us permit him to advance our salvation by a diversity of methods; and let us not refuse to be humbled, that he may more abundantly display his glory. Above all, let us never avoid the cross, by which the Son of God himself was trained from his earliest infancy. This flight is a part of the foolishness of the cross, but it surpasses all the wisdom of the world. That he may appear at his own time as the Savior of Judea, he is compelled to flee from it, and is nourished by Egypt, from which nothing but what was destructive to the Church of God had ever proceeded. Who would not have regarded with amazement such an unexpected work of God?
Joseph immediately complies with the injunction of the Angel. This is another proof of the certainty of the dream: for such promptitude of obedience plainly shows, that he had no doubt whatever, that it was God who had enjoined him to take flight. This eager haste may wear somewhat of the aspect of distrust: for the flight by night had some appearance of alarm. But it is not difficult to frame an excuse. He saw that God had appointed a method of safety which was low and mean: and he concludes that he is at liberty to take flight in such a state of alarm as is commonly produced by extreme danger. Our fear ought always to be regulated by the divine intimations. If it agrees with them, it will not be opposed to faith.
Be thou there until I have told thee By these words the Angel declares, that the life of the child will, even in future, be the object of the divine care. Joseph needed to be thus strengthened, so as to conclude with certainty, that God would not only conduct him in the journey, but that, during his banishment, God would be his constant protector. And in this way God was pleased to allay many anxieties, with which the heart of the good man must have been perplexed, so that he enjoyed serenity of mind during his sojourn in Egypt. But for this, not a moment would have passed without numerous temptations, when he saw himself excluded not only from the inheritance promised by God to all his saints, — but from the temple, from sacrifices, from a public profession of his faiths, — and was living among the worst enemies of God, and in a deep gulf of superstitions. He carried with him, indeed, in the person of the child, all the blessings which the Fathers had hoped to enjoy, or which the Lord had promised to them: but as he had not yet made such proficiency in faith, and in the knowledge of Christ, he needed to be restrained by this injunction, Be thou there until I have told thee, that he might not be displeased at languishing in banishment from his country among the Egyptians.