35 As you look around right now, wouldn't you say that in about four months it will be time to harvest? Well, I'm telling you to open your eyes and take a good look at what's right in front of you. These Samaritan fields are ripe. It's harvest time! 36 "The Harvester isn't waiting. He's taking his pay, gathering in this grain that's ripe for eternal life. Now the Sower is arm in arm with the Harvester, triumphant. 37 That's the truth of the saying, 'This one sows, that one harvests.' 38 I sent you to harvest a field you never worked. Without lifting a finger, you have walked in on a field worked long and hard by others."
Matthew Henry's Commentary on John 4:35-38
Commentary on John 4:27-42
(Read John 4:27-42)
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. In the certainty of it: we know that this is indeed the Christ. And in the ground of it, for we have heard him ourselves.