25 The woman saith unto him, I know that Messias cometh, which is called Christ: when he is come, he will tell us all things. 26 Jesus saith unto her, I that speak unto thee am he. (John 4:25-26 KJV)
William Burkitt’s Commentary
Observe here, 1. What a general expectation there was in the minds of all persons (at the time of our Saviour’s appearing) of one whom the Jews call the Messiah. I know that Messiah cometh. This woman, though a Samaritan, yet knew that the Messiah should come, and that he was now expected.
Observe, 2. What the work and office of the Messias was apprehended and believed to be, namely, to reveal the whole mind and will of God to a lost world: When the Messiah is come, he will tell us all things.
Learn hence, That the Lord Jesus Christ, the promised and true Messiah, being called and appointed by God to be the great Prophet of his church, hath fully and perfectly revealed all things needful to be known for our salvation, All things that I have heard of the Father, I have made known unto you. John 15:15
Observe lastly, How freely and fully Christ reveals himself to this poor woman; he tells her plainly, that he was the Messias. When the Jews asked him, If thou be the Christ, tell us plainly, John 10:24 Christ did not in plain terms tell them who he was; nay, when John Baptist sent two of his disciples to ask him, whether he were, He that should come; he gave them no direct answer: yet behold he makes himself plainly known to this poor woman; he discerning her humility and great simplicity, that she was willing to be instructed by him, and did not come to him as the Jews and Pharisees did, captiously, with a design to entangle and ensnare him.
Hence learn, That the Lord Jesus Christ delights to reveal himself, and make known his mind and will to such as with an humble mind, and an honest simplicity of heart, do desire to know him, and understand their duty to him.