John 4:42

This is indeed the Saviour of the world. These Samaritans then believed that Jesus was the true Messias, sent to redeem the world. (Witham)

(1.) To credit Christ's word (v. 39): Many of the Samaritans of that city believed on him for the saying of the woman. So far they believed on him that they took him for a prophet, and were desirous to know the mind of God from him; this is favourably interpreted as believing on him. Now observe, [1.] Who they were that believed: Many of the Samaritans, who were not of the house of Israel. Their faith was not only an aggravation of the unbelief of the Jews, from whom better might have been expected, but an earnest of the faith of the Gentiles, who would welcome that which the Jews rejected. [2.] Upon what inducement they believed: For the saying of the woman. See here, First, How God is sometimes pleased to use very weak and unlikely instruments for the beginning and carrying on of a good work. A little maid directed a great prince to Elisha, 2 Kings 5 2. Secondly, How great a matter a little fire kindles. Our Saviour, by instructing one poor woman, spread instruction to a whole town. Let not ministers be either careless in their preaching, or discouraged in it, because their hearers are few and mean; for, by doing good to them, good may be conveyed to more, and those that are more considerable. If they teach every man his neighbour, and every man his brother, a great number may learn at second hand. Philip preached the gospel to a single gentleman in his chariot upon the road, and he not only received it himself, but carried it into his country, and propagated it there. Thirdly, See how good it is to speak experimentally of Christ and the things of God. This woman could say little of Christ, but what she did say she spoke feelingly: He told me all that ever I did. Those are most likely to do good that can tell what God has done for their souls, Ps 66 16.

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.…