Acts 9:6-9

now get up and go into the city, and you will be told what you must do.” The men who were traveling with him [were terrified and] stood speechless, hearing the voice but seeing no one. Saul got up from the ground, but though his eyes were open, he could see nothing; so they led him by the hand and brought him into Damascus. And he was unable to see for three days, and he neither ate nor drank.