3 Moses said, "I will turn aside now, and see this great sight, why the bush is not burnt."
*Minor differences ignored. Grouped by changes, with first version listed as example.
And Moses said, I will now turn aside. It is certain that his mind was disposed to reverence from no rashness, but by divine inspiration. Although not yet accustomed to visions, he still perceives that, this is no unmeaning spectacle, but that some mystery was contained in it, which he must by no means neglect, and to the knowledge of which he was divinely called. In this, too, we must observe his tractableness, in turning aside to learn. For it often happens that God presents himself to us in vain, because we presumptuously reject such great mercy. Let us learn, then, by the example of Moses, as often as God invites us to himself by any sign, to give diligent heed, lest the proffered light be quenched by our own apathy. But from his calling it a "great sight," we gather that he was taught by secret inspiration the depth of the mystery, though it was as yet unknown. In this way God prepared his mind to reverence, that he might the sooner profit by it.
And Moses said, I will now turn aside,.... From the place where he was, and the flock he was feeding, and get nearer to the bush, which seems to have been on one side of him and not directly before him:
and see this great sight, why the bush is not burnt; inquire into, and find out, if he could, the reason of this strange and amazing sight; how it could be that a bush should be on fire and yet not burnt up, which might have been expected would have been destroyed at once; for what is a thorn or bramble bush to devouring flames of fire, as these appeared to be?
I will turn aside and see - He speaks as one inquisitive, and bold in his inquiry; whatever it was, he would if possible know the meaning of it.
*More commentary available at chapter level.