We know not whither thou goest - Though Jesus had so often told them of his approaching death and resurrection, yet it seems they did not understand him, nor did they fully comprehend him until after his resurrection. See Luke 24:21. They entertained the common notions of a temporal kingdom; they supposed still that he was to be an earthly prince and leader, and they did not comprehend the reason why he should die. Thomas confessed his ignorance, and the Saviour again patiently explained his meaning. All this shows the difficulty of believing when the mind is full of prejudice and of contrary opinions. If Thomas had laid aside his previous opinions - had he been willing to receive the truth as Jesus plainly spoke it, there would have been no difficulty. Faith would have been an easy and natural exercise of the mind. And so with the sinner. If he were willing to receive the plain and unequivocal doctrines of the Bible, there would be no difficulty; but his mind is full of opposite opinions and plans, occupied with errors and vanities, and these are the reasons, and the only reasons, why he is not a Christian. Yet who would say that, after the plain instructions of Jesus, Thomas might not have understood him? And who will dare to say that any sinner may not lay aside his prejudices and improper views, and receive the plain and simple teaching of the Bible?

Lord, we know not - Thomas, perhaps, thought that our Lord only spoke of his going some distance from the place where he then was.

Thomas saith unto him, Lord,.... Who was one of his apostles, and here betrays his ignorance, as elsewhere his unbelief; and not only speaks for himself, but for the rest of the apostles, of whom he judged by himself; and who, it may be, might understand things better than himself, though their knowledge at present was but small:

we know not whither thou goest; though he had but just told them of his Father's house, and of his going to prepare a place for them:

and how can we know the way? for if we do not know the place, it is not reasonable to think we should know the way to it. Thomas seemed to have no other notion than that Christ was talking of some particular place in Judea, whither he was going, and of the road to it.

And how can we know (καὶ πῶς δυνάμεθα τὴν ὁδὸν εἰδέναι)

The best texts substitute οἴδαμεν, know we, for δυνάμεθα, can we; reading, how know we the way. So Rev. Some also omit and before how.

Thomas saith unto him, Lord, we know not whither thou goest; and how can we know the way?

14:5 Thomas saith - Taking him in a gross sense.

14:1-11 Here are three words, upon any of which stress may be laid. Upon the word troubled. Be not cast down and disquieted. The word heart. Let your heart be kept with full trust in God. The word your. However others are overwhelmed with the sorrows of this present time, be not you so. Christ's disciples, more than others, should keep their minds quiet, when everything else is unquiet. Here is the remedy against this trouble of mind, Believe. By believing in Christ as the Mediator between God and man, we gain comfort. The happiness of heaven is spoken of as in a father's house. There are many mansions, for there are many sons to be brought to glory. Mansions are lasting dwellings. Christ will be the Finisher of that of which he is the Author or Beginner; if he have prepared the place for us, he will prepare us for it. Christ is the sinner's Way to the Father and to heaven, in his person as God manifest in the flesh, in his atoning sacrifice, and as our Advocate. He is the Truth, as fulfilling all the prophecies of a Saviour; believing which, sinners come by him the Way. He is the Life, by whose life-giving Spirit the dead in sin are quickened. Nor can any man draw nigh God as a Father, who is not quickened by Him as the Life, and taught by Him as the Truth, to come by Him as the Way. By Christ, as the Way, our prayers go to God, and his blessings come to us; this is the Way that leads to rest, the good old Way. He is the Resurrection and the Life. All that saw Christ by faith, saw the Father in Him. In the light of Christ's doctrine, they saw God as the Father of lights; and in Christ's miracles, they saw God as the God of power. The holiness of God shone in the spotless purity of Christ's life. We are to believe the revelation of God to man in Christ; for the works of the Redeemer show forth his own glory, and God in him.