Why did Jesus reveal the woman's sin during their conversation?

In John 4:16-18, Jesus brings to light the woman's past of multiple husbands and her current sinful situation. His intent was not to condemn her but to reveal her deep need for spiritual fulfillment, which only He could provide. By confronting her with the truth of her life, He enables her to see her need for the living water that offers eternal life. His gentle yet firm approach illustrates that while He exposes our sin, He does so in order to extend grace and invite us into a transformative relationship with Him.