Albert Barnes Commentary John 5:13

"But he that was healed knew not who it was; for Jesus had conveyed himself away, a multitude being in the place." — John 5:13 (ASV)

Wist not. Knew not.

“Had conveyed himself away.” He was lost in the crowd.

He had silently mingled with the multitude or passed on with the crowd unobserved, and the man had been so rejoiced at his cure that he had not even inquired the name of his benefactor.