John 4:38

By these words our Saviour testifies to his disciples, that the prophets had sown the seed in order to bring men to believe in Christ. This was the end of the law, this the fruit which the prophets looked for to crown their labours. He likewise shews that he himself that sent them, likewise sent the prophets before them; and that the Old and New Testament are of the same origin, and have the same design. (St. Chrysostom in St. Thomas Aquinas)

a. We will suppose the tradition true, that Jacob himself, and his children, and cattle, did drink of this well. And we may observe from it, (a.) The power and providence of God, in the continuance of the fountains of water from generation to generation, by the constant circulation of the rivers, like the blood in the body (Eccl 1 7), to which circulation perhaps the flux and reflux of the sea, like the pulses of the heart, contribute. (b.) The plainness of the patriarch Jacob; his drink was water, and he and his children drank of the same well with his cattle.

(1.) That it was necessary work, and the occasion for it very urgent and pressing (v. 35): You say, It is four months to harvest; but I say, The fields are already white. Here is,

[2.] A saying of Christ's concerning the gospel harvest; his heart was as much upon the fruits of his gospel as the hearts of others were upon the fruits of the earth; and to this he would lead the thoughts of his disciples: Look, the fields are already white unto the harvest. First, Here in this place, where they now were, there was harvest work for him to do. They would have him to eat, v. 31. "Eat!" saith he, "I have other work to do, that is more needful; look what crowds of Samaritans are coming out of the town over the fields that are ready to receive the gospel;" probably there were many now in view. People's forwardness to hear the word is a great excitement to ministers' diligence and liveliness in preaching it. Secondly, In other places, all the country over, there was harvest work enough for them all to do. "Consider the regions, think of the state of the country, and you will find there are multitudes as ready to receive the gospel as a field of corn that is fully ripe is ready to be reaped." The fields were now made white to the harvest, 1. By the decree of God revealed in the prophecies of the Old Testament. Now was the time when the gathering of the people should be to Christ ( Gen 49 10), when great accessions should be made to the church and the bounds of it should be enlarged, and therefore it was time for them to be busy. It is a great encouragement to us to engage in any work for God, if we understand by the signs of the times that this is the proper season for that work, for then it will prosper. 2. By the disposition of men. John Baptist had made ready a people prepared for the Lord, Luke 1 17. Since he began to preach the kingdom of God every man pressed into it, Luke 16 16. This, therefore, was a time for the preachers of the gospel to apply…

Verses 27-42 The disciples wondered that Christ talked thus with a Samaritan. Yet they knew it was for some good reason, and for some good end. Thus when particular difficulties occur in the word and providence of God, it is good to satisfy ourselves that all is well that Jesus Christ says and does. Two things affected the woman. The extent of his knowledge. Christ knows all the thoughts, words, and actions, of all the children of men. And the power of his word. He told her secret sins with power. She fastened upon that part of Christ's discourse, many would think she would have been most shy of repeating; but the knowledge of Christ, into which we are led by conviction of sin, is most likely to be sound and saving. They came to him: those who would know Christ, must meet him where he records his name. Our Master has left us an example, that we may learn to do the will of God as he did; with diligence, as those that make a business of it; with delight and pleasure in it. Christ compares his work to harvest-work. The harvest is appointed and looked for before it comes; so was the gospel. Harvest-time is busy time; all must be then at work. Harvest-time is a short time, and harvest-work must be done then, or not at all; so the time of the gospel is a season, which if once past, cannot be recalled. God sometimes uses very weak and unlikely instruments for beginning and carrying on a good work. Our Saviour, by teaching one poor woman, spread knowledge to a whole town. Blessed are those who are not offended at Christ. Those taught of God, are truly desirous to learn more. It adds much to the praise of our love to Christ and his word, if it conquers prejudices. Their faith grew. In the matter of it: they believed him to be the Saviour, not only of the Jews but of the world.…