And Jesus said, “Who was it that touched me?” When all denied it, Peter said, “Master, the crowds surround you and are pressing in on you!”
Luke 8:45. Who is it that touched me, Mark expresses it still more clearly, when he says that Christ looked around to see who she was. It does appear to be absurd that Christ should pour out his grace without knowing on whom he was bestowing a favor.
Christ was driven away by the Gadarenes; they were weary of him, and willing to be rid of him. But when he had crossed the water, and returned to the Galileans, they gladly received him, wished and waited for his return, and welcomed him with all their hearts when he did return, Luk 8:40. If some will not accept the favours Christ offers them, others will.
Commenting on Luke 8:40-56
And Jesus said, somebody hath touched me,.... Not in a common and accidental way, but with design, and in the strength of faith: for I perceive that virtue is gone out of me: for the cure of the person that had touched him, and that not without his knowledge and will; See Gill on Luk 6:19.