*Minor differences ignored. Grouped by changes, with first version listed as example.
Then I said unto you, Dread not. He here omits the address of Caleb and Joshua: since he only states briefly the heads of what he had spoken to the people. He merely shows that, when he endeavored to recall them to their right senses, his efforts and pains were ineffectual. Moreover, he reasons from experience that they might well place their hopes in the assistance of God, because He went before them as a light; and, in proof of this, he reminds them that, after the discomfiture of the Egyptians, He did not fail still to exert His power, so as to protect even to the end those whom He had once delivered. This, then, is his proposition, that although they might be aware of their own weakness, still, through the power of God, they would be conquerors, since He had taken them under His care, and had declared Himself their leader; which he indicates by the expression, "goes before you." And, lest any hesitation should remain, he sets against their present obstacles the miracles of God's power, which they had experienced, not only in the commencement of their redemption, but in the continued progress of their deliverance's, when, in their lost and desperate state, He had by ways innumerable restored them from death unto life. Hence he concludes that they ought not to be afraid, not that he would wish them to be altogether free from all fear and care, but so that they might overcome all hindrances, when confidence derived from the ready help of God should prevail in their hearts. He says emphatically that God had fought "before their eyes," to lead them to fuller conviction by the evidence of their own senses.
Then I said unto you, dread not, neither be afraid of them. With such like words he had exhorted and encouraged them before the spies were sent, and he still uses the same, or stronger terms, notwithstanding the report that had been made of the gigantic stature and walled cities of the Canaanites. This speech of Moses, which is continued in the two following verses, is not recorded in Numbers 14:5, it is only there said, that Moses and Aaron fell on their faces, but no account is given of what was said by either of them.
*More commentary available at chapter level.