30 What shall we say then? That the Gentiles, which followed not after righteousness, have attained to righteousness, even the righteousness which is of faith. 31 But Israel, which followed after the law of righteousness, hath not attained to the law of righteousness. 32 Wherefore? Because they sought it not by faith, but as it were by the works of the law. For they stumbled at that stumblingstone; (Romans 9:30-32 KJV)
William Burkitt’s Commentary
As if Apostle Paul had said, “Lord, what shall we say to this great mystery of grace, the calling of the Gentile world, and the cutting off and casting away most of the present Jewish nation? That the Gentiles who lived in ignorance and blindness, in sin and unrighteousness, should attain to righteousness by faith in Christ; and that the Israelites, who had God’s own righteous law amongst them, and trusted to be justified by the observation of it, yet should not attain to that rightness which God accepts. And wherefore have they not attained it? but because they sought not justification by that faith which God prescribes for that end, namely, faith in the Mediator; but thought it must be attained by the works of the law, keeping all the ceremonial precepts, by which no flesh can be justified: and the reason why they sought it not by faith was this, They stumbled at the stumbling stone; that is, at the Lord Jesus Christ, taking offence at his poverty and mean condition in the world, and at the spirituality of his kingdom.”
Learn hence, That the great humiliation of Christ in the days of his flesh, did prove a snare and occasion to many persons to despise and reject him, to stumble at him, and fall foul upon him. But in what respects is Christ called a stone of stumbling, and a rock of offence?
Answer Negatively; not because he was by God designed, either intentionally or accidentally, to be such. All stumbling and offence-taking at Christ are accidental, proceeding from the depravity of man, not from the design of God. Much less were the Jews fore-appointed and ordained by God to stumble at his Son; for God appoints no man to do that which he prohibits all men from doing.
And as no man is necessitated by the decree of God, so neither is he constrained or necessitated by Satan, by his corruption, or any other instrument, to stumble or take offence at Christ; for actions necessitated upon men are neither demeritorious nor punishable. But positively Christ is called a stone of stumbling because men, willingly ignorant and wilfully perverse, do take offence at him.
Though God never designed or desired any man’s stumbling at Christ, yet he knew and foresaw that many, very many, would stumble at him: and accordingly expressed him by a prophetical character answering the event, and predicting that which in time came to pass: Behold, I lay in Sion a stumbling-block.