The woman said, “I know the Messiah is coming—the One who is called Christ. When He comes, He will explain everything to us.” Then Jesus told her, “I AM the Messiah!” (John 4:25-26 NLT)
The people had been looking for the promised Messiah for many years. The woman at the well was the first person that Jesus told, that He was the Messiah. She runs home and tells the town to come and meet a man who knew everything about her, could He be the Christ (Messiah)? Yes, He was and is the Messiah, the Christ that came to this world to save people from their sins.