Jesus is aware of this woman's suffering and of her faith from the moment she touches Him, feeling power leave Him. He asks, "Who touched Me?" to glorify God by bringing this healing out into the open, which also identifies Him as the Healer. Although He puts the woman on the spot to confess openly what she had done, He encourages her by commending her faith. Jesus is thrilled to find faith in this Galilean crowd, since, while most in the crowd thronged Him outwardly, she connected with Him inwardly through her faith. His tender confirmation that her healing was permanent encouraged many, and the revelation that He is the One Healer who had truly made her well produced a tremendous witness.
Jesus says that her faith had made her whole, but faith has no actual healing power. Faith is a required conduit through which healing flows. The same holds true in our spiritual healing: "We believe [have faith] that through the grace of our Lord Jesus Christ we shall be saved" (Acts 15:11).
His command, "Go in peace!" (Mark 5:34; Luke 8:48), literally means "Go into peace." In other words, Jesus is instructing her to be thankful for her body's healing, but as she moved forward, she would enter into the peace that He had come to impart to all those who trusted in Him.
The restoration of an individual from sin to spiritual health parallels this woman's physical healing. In the same way, sinners cannot purchase the healing of their sinfulness. Christ alone can deal with our corrupt condition and fully and instantaneously restore us by His sacrificial death. Just as this woman's healing is freely given in response to her faith, so does God extend grace to those who believe Him.