O fools - The word "fool" sometimes is a term of reproach denoting "wickedness." In this sense we are forbidden to employ it in addressing another, Matthew 5:22. That, however, is a different word in the Greek from the one which occurs here. The one there used implies contempt, but the one employed in this place denotes "weakness or dulness." He reproached them for not seeing what he had himself so clearly predicted, and what had been foretold by the prophets. The word used in the original does not imply as much "reproach" as the word "fool" does among us. It was not an expression of "contempt;" it was an expression denoting merely that they were "thoughtless," and that they did not properly "attend to" the evidence that he must die and rise again.

Slow of heart to believe - Not quick to perceive. Dull of learning. They had suffered their previous opinions and prejudices to prevent their seeing the evidence that he must die and rise from the dead.

All that the prophets have spoken - Respecting the character and sufferings of the Messiah. See the notes at Luke 24:27.

O fools and slow of heart to believe - Inconsiderate men, justly termed such, because they had not properly attended to the description given of the Messiah by the prophets, nor to his teaching and miracles, as proofs that He alone was the person they described.

Slow of heart - Backward, not easy to be persuaded of the truth, always giving way to doubtfulness and distrust. This very imperfection in them is a strong evidence of the truth of the doctrine which they afterwards believed, and proclaimed to the world. Had they not had the fullest assurance of these things, they never would have credited them; and it is no small honor to the new-covenant Scriptures that such persons were chosen, first, to believe them; secondly, to proclaim them in the world; and, thirdly, to die on the evidence of those truths, the blessed influence of which they felt in their own hearts, and fully exemplified in their lives.

Then he said unto them,.... That is, Jesus said unto them, as the Syriac and Persic versions read:

O fools; not in a natural sense, as if they were destitute of the common understanding of men; nor in a moral sense, as wicked men, and as they themselves had been in their unregenerate estate; nor in a way of anger and contempt, and with a design to provoke; wherefore Christ did not act contrary to his own rule, in Matthew 5:22 but because they were so void of understanding in the Scriptures, and were so very ignorant of them, and were so blind as to the knowledge of them; particularly those which concerned the sufferings and resurrection of the Messiah, being influenced by the popular prejudices of education: he therefore expresses himself with much warmth, concern, and surprise, that he should have been so long with them, and they so long under his doctrine and ministry; besides the advantages of having the Scriptures, and being conversant with them from their youth; and which they daily read, and had heard expounded, and yet were so very senseless and stupid:

and slow of heart to believe all that the prophets have spoken; that is, upon these points, concerning the sufferings of Christ, and his resurrection from the dead; and indeed, they were very slow of heart to believe, not only what the women reported from the angels, but even those of their brethren, who had seen him after he was risen; for which Christ upbraids them, Mark 16:14. Yea, one of them declared after all, that he would not believe, unless he saw the print of the nails in his hands and feet, and put his hand into it, and thrust it into his side; wherefore Christ had good reason to treat them in this sharp manner, and charge them with folly and incredulity; the Jews ought not to object to the word "fools", as unbecoming Christ, since they frequently represent God as making use of it; as for instance, it is said, (x).

"the holy blessed God said to them, "O ye fools" that are in the world, whatsoever ye do, ye do for your own necessities. ---And a little after, "O ye fools" that are in the world, he that labours on the evening of the sabbath, shall eat on the sabbath day.''

(x) T. Bab. Avoda Zara, fol. 2. 2. & 3. 1.

Fools and slow of heart (ἀνόητοι καὶ βραδεῖς τῇ καρδίᾳ)

This is an unfortunate translation, in the light of the ordinary, popular use of the word fool. Jesus would never have called those sorrowful disciples fools in that sense. The word is compounded of ἀ, not, and νοέω, which implies, besides seeing, perception of the mind as consequent upon sight. It is therefore equivalent to dull of perception. They had read what the prophets had spoken, but had failed to perceive its application to Christ. While this rebuke relates to the understanding, the following one, slow of heart, goes deeper, and contemplates the region of feeling and moral susceptibility. Your heart is dull and slow to respond to these testimonies of your own prophets. Compare hardiness of heart, Mark 16:14.

All (ἐπὶ πᾶσιν)

Rev., rightly, in all; relying upon (ἐπί) all the utterances of the prophets.

Then he said unto them, O fools, and slow of heart to believe all that the prophets have spoken:

24:25 O fools. Because slow of heart to believe all that the prophets have spoken.

24:25 O foolish - Not understanding the designs and works of God: And slow of heart - Unready to believe what the prophets have so largely spoken.

25-27. fools-senseless, without understanding.

24:13-27 This appearance of Jesus to the two disciples going to Emmaus, happened the same day that he rose from the dead. It well becomes the disciples of Christ to talk together of his death and resurrection; thus they may improve one another's knowledge, refresh one another's memory, and stir up each other's devout affections. And where but two together are well employed in work of that kind, he will come to them, and make a third. Those who seek Christ, shall find him: he will manifest himself to those that inquire after him; and give knowledge to those who use the helps for knowledge which they have. No matter how it was, but so it was, they did not know him; he so ordering it, that they might the more freely discourse with him. Christ's disciples are often sad and sorrowful, even when they have reason to rejoice; but through the weakness of their faith, they cannot take the comfort offered to them. Though Christ is entered into his state of exaltation, yet he notices the sorrows of his disciples, and is afflicted in their afflictions. Those are strangers in Jerusalem, that know not of the death and sufferings of Jesus. Those who have the knowledge of Christ crucified, should seek to spread that knowledge. Our Lord Jesus reproved them for the weakness of their faith in the Scriptures of the Old Testament. Did we know more of the Divine counsels as far as they are made known in the Scriptures, we should not be subject to the perplexities we often entangle ourselves in. He shows them that the sufferings of Christ were really the appointed way to his glory; but the cross of Christ was that to which they could not reconcile themselves. Beginning at Moses, the first inspired writer of the Old Testament, Jesus expounded to them the things concerning himself. There are many passages throughout all the Scriptures concerning Christ, which it is of great advantage to put together. We cannot go far in any part, but we meet with something that has reference to Christ, some prophecy, some promise, some prayer, some type or other. A golden thread of gospel grace runs through the whole web of the Old Testament. Christ is the best expositor of Scripture; and even after his resurrection, he led people to know the mystery concerning himself, not by advancing new notions, but by showing how the Scripture was fulfilled, and turning them to the earnest study of it.