Then asked they, What man is that, &c. Dropping all mention of the cure, they only fix on what seemed liable to exception. They do not ask, Who made thee well? but, Who bade thee take up this bed on the sabbath day? that is, as they interpreted it, Who bade thee profane the sabbath? Though he had just told them it was the author of his cure that gave him that command; for all that they proposed was, not to hear of any good that had been done to engage their admiration and applause; but to lay hold on some occasion to find fault, to gratify the pride and malice of a censorious temper. And he that was healed wist not Did not know at that time; who it was That had cured him; for Jesus had conveyed himself away Greek, εξενευσεν, had slipped away. The word, as Casaubon observes, is an elegant metaphor borrowed from swimming, and well expresses the easy, unobserved manner in which Christ, as it were, glided through the multitude, leaving no trace behind of the way he had taken.
Related Commentaries of John 5:12
John 5:12-13
12 Then asked they him, What man is that which said unto thee, Take up thy bed, and walk?
13 And he that was healed wist not who it was: for Jesus had conveyed himself away, a multitudea being in that place.