Opened he their understanding - Enabled them fully to comprehend the meaning of the prophecies which foretold his death and resurrection. They had seen him die, they now saw him risen. Their prejudices were now, by his instructions, and by the facts which they could no longer call in question, removed, and they no longer doubted that he was the Messiah, and that all the "facts" in the case which had before confounded them could be easily accounted for. Hence, we may learn:

1. That "facts," or the farther disclosure of truth, will yet remove the "mysteries" that we now see in religion.

2. That our prejudices and our preconceived opinions are one cause of our seeing so many mysteries in the Bible. If a man is willing to take the plain declarations of the Bible, he will commonly be little perplexed with mysteries.

3. That God only can open the mind so as fully to comprehend the Scriptures. He only can overcome our prejudices, open our hearts, and dispose us to receive the ingrafted word with meekness, and with the simplicity of a child. See Acts 16:14; James 1:21; Mark 10:15.

4. The design of God's opening the understanding is that we may be acquainted with the Scriptures. It is not that we may be made wise above what is written, but that we may submit ourselves wholly to the Word of God.

Then opened he their understanding - Διηνοιξεν, He fully opened. They had a measure of light before, so that they discerned the Scriptures to be the true word of God, and to speak of the Messiah; but they had not light sufficient to enable them to apply these Scriptures to their Lord and Master; but now, by the influence of Christ, they see, not only, the prophecies which pointed out the Messiah, but also the Messiah who was pointed out by these prophecies. The book of God may be received in general as a Divine revelation, but the proper meaning, reference, and application of the Scriptures can only be discerned by the light of Christ. Even the very plain word of God is a dead letter to those who are not enlightened by the grace of Christ; and why? because this word speaks of spiritual and heavenly things; and the carnal mind of man cannot discern them. They who receive not this inward teaching continue dark and dead while they live.

Then opened he their understanding,.... He not only opened their hearts, to attend to what he said, and the proofs he gave of his resurrection from the dead in a true body; but he removed the veil from the eyes of their minds, and gave them an understanding of the sacred writings, respecting this matter:

that they might understand the Scriptures; concerning his sufferings, death, and resurrection, which they were very ignorant of before, and which were as a sealed book unto them, John 20:9 though they had been from their infancy brought up to the reading of the Scriptures, and had had the advantage of Christ's ministry for some years; which shows the necessity of the special illumination of the Spirit, and the influence of his grace to remove the darkness of the mind, and give the true sense of the sacred writings.

Understanding (νοῦν)

Which had been closed. See on fools, Luke 24:25.

Then opened he their understanding, that they might understand the scriptures,

24:44-48 And he said unto them. Between verses 43 and 44, Luke passes over an interval of weeks, and many appearances of the Risen Christ, to come at once to the event of his Ascension. The Lord, about to send them forth to preach, opens their mind that they might understand the Scriptures, and then repeats the Commission, before given in Galilee. He requires that (1) Repentance, (2) Remission of Sins, (3) Shall be Preached in his Name, (4) Unto All Nations, (5) Beginning at Jerusalem. This was literally obeyed on the day of Pentecost.

24:45 Then opened he their understanding, to understand the Scriptures - He had explained them before to the two as they went to Emmaus. But still they Understood them not, till he took off the veil from their hearts, by the illumination of his Spirit.

45. Then opened he, &c.-a statement of unspeakable value; expressing, on the one hand, Christ's immediate access to the human spirit and absolute power over it, to the adjustment of its vision, and permanent rectification for spiritual discernment (than which it is impossible to conceive a stronger evidence of His proper divinity); and, on the other hand, making it certain that the manner of interpreting the \ Old Testament which the apostles afterwards employed (see the Acts and Epistles), has the direct sanction of Christ Himself.

24:36-49 Jesus appeared in a miraculous manner, assuring the disciples of his peace, though they had so lately forsaken him, and promising spiritual peace with every blessing. Many troublesome thoughts which disquiet our minds, rise from mistakes concerning Christ. All the troublesome thoughts which rise in our hearts at any time, are known to the Lord Jesus, and are displeasing to him. He spake with them on their unreasonable unbelief. Nothing had passed but what was foretold by the prophets, and necessary for the salvation of sinners. And now all men should be taught the nature and necessity of repentance, in order to the forgiveness of their sins. And these blessings were to be sought for, by faith in the name of Jesus. Christ by his Spirit works on the minds of men. Even good men need to have their understandings opened. But that we may have right thoughts of Christ, there needs no more than to be made to understand the Scriptures.