John 4:15-19 — The woman saith unto Him, Sir, give me this water, that I thirst not, neither come hither to draw.
Jesus saith unto her, Go, call thy husband, and come hither.
The woman answered and said, I have no husband. Jesus said unto her, Thou hast well said, I have no husband:
For thou hast had five husbands; and he whom thou now hast is not thy husband: in that saidst thou truly.
The woman saith unto Him, Sir, I perceive that Thou art a prophet.
give me this water — She responded, but she still didn't understand. She thought Jesus was talking about magical, but physical, water.
Jesus stopped talking about the gift of grace and began showing her her need for a Savior by bringing out her sin.
He knew her sin, but still He told her to come.
Go … and come here — Go confront your sinfulness and come to Jesus in your true character, a self-confessed sinner. He offered truth and grace.
She still didn't know who He was, but she knew He had divine knowledge.