I have seen this people, and behold. This was, indeed, the sharpest and sorest trial of the faith of Moses; when God seemed to contradict Himself and to depart from His covenant. If ever, after having been long oppressed by excessive calamities, we are not only wearied by the delay, but also agitated with various doubts, which at length tempt us to despair, as if God had disappointed us by deceptive promises, the contest is severe and terrible; but when God seems at first sight to throw discredit upon His own words, we have need of unusual fortitude and firmness to sustain this assault. For, since faith is founded on the Word, when that Word appears to be at issue with itself, how in such conflicting circumstances could pious minds be sustained unless they were supported by the incomparable power of the Spirit? Still in the mind of Abraham there was such strength of faith, that he came forth as a conqueror from this kind of temptation. He had heard from God's own mouth, "In Isaac shall thy seed be called;" he is afterwards commanded to slay him, and reduce his body to ashes; yet, because he is persuaded that God was able to raise him up seed even from the dead, he obeys the command. (Hebrews 11:17-19.) The same thing is here recorded of Moses, before whom God sets a kind of contradiction in His Word, when He declares that He has the intention of destroying that people, to which He had promised the land of Canaan. Nevertheless, we see how successfully he strove, since, trusting in the eternal and inviolable covenant of God, he did not cease to cherish a good hope. If any still should ask whether it was right for him to despise or count for nothing what was said to him in the second place as to the utter destruction of the people, I reply, that the victory of his faith did not consist in subtle disquisitions, but that having embraced God's covenant with both arms, as they say, he was so fortified by his confidence that he had room for no objections; and, in point, of fact, pious minds which rest on firm assurance, although unable to free themselves from every perplexity which occurs, still do not waver, but keep a tight grasp on what the Spirit of God has once sealed to them; and, if sometimes it happens that they begin to doubt or vacillate, nevertheless they come back to their foundation and break through every obstacle, so as never to desist from calling upon God. Meanwhile, it is certain that, whilst God is trying the faith of Moses, He quickens his mind to be more earnest in prayer, even as Moses himself was led in that direction by the secret influence of the Spirit. Nor is there any reason why slanderous tongues should here impugn God, as if He pretended before men what He had not decreed in Himself; for it is no proof that He is variable or deceitful if, when speaking of men's sins, and pointing out what they deserve, He does not lay open His incomprehensible counsel. He here presents Himself in the character of Judge; He pronounces sentence of condemnation against the criminals; he postpones their pardon to a fitting season. Hence we gather that his secret judgments are a great deep; whilst, at the same time, His will is declared to us in His word as far as suffices for our edification in faith and piety. And this is more clearly expressed by the context; for He asks of Moses to let Him alone. Now, what does this mean? Is it not that, unless he should obtain a truce from a human being, He will not be able freely to execute His vengeance? -- adopting, that is to say, by this mode of expression, the character of another, He declares his high estimation of His servant, to whose prayers He pays such deference as to say that they are a hinderance to him. Thus it is said in Psalm 106:23, that Moses "stood in the breach, to turn away the wrath" of God. Hence do we plainly perceive the wonderful goodness of God, who not only hears the prayers of His people when they humbly call upon Him, but suffers them to be in a manner intercessors with Him. He assigns as the reason why He should be implacable, that He well knew the desperate and incurable wickedness of the people; for by "stiff-necked," indomitable obstinacy is metaphorically expressed; and the similitude is taken from stubborn oxen who cannot be brought to submit to the yoke. Now, where such hardness and obstinacy exists, there is no room for pardon. It is indeed an expression which must not be taken literally, that God had learnt by experience that they were a stiff-necked people; but we know that God often assumes human feelings; for unless He should thus come down to us, our minds could never attain to His loftiness. The sum is, that the character of the people was desperate, inasmuch as they had already manifested their inflexible perverseness by many proofs. Still, lest Moses should grieve at the loss of his noble chieftainship, a compensation is promised him; by which trial it appeared that he did not regard his own private interests or advantages.

A stiff-necked people - Probably an allusion to the stiff-necked ox, the object of their worship.

And the Lord said unto Moses, I have seen this people,.... He had observed their ways and works, their carriage and behaviour; he had seen them before this time; he knew from all eternity what they would be, that their neck would be as an iron sinew, and their brow brass; but now he saw that in fact which he before saw as future, and they proved to be the people he knew they would be; besides, this is said to give Moses the true character of them, which might be depended upon, since it was founded upon divine knowledge and observation:
and, behold, it is a stiffnecked people; obstinate and self-willed, resolute in their own ways, and will not be reclaimed, inflexible and not subjected to the yoke of the divine law; a metaphor taken from such creatures as will not submit their necks or suffer the yoke or bridle to be put upon them, but draw back and slip away; or, as Aben Ezra thinks, to a man that goes on his way upon a run, and will not turn his neck to him that calls him, so disobedient and irreclaimable were these people.

It is a stiff - necked people - Unapt to come under the yoke of the divine law, averse to all good, and prone to evil, obstinate to the methods of cure.