For I will show him ... - This seems to be added to encourage Ananias. He had feared Saul. The Lord now informs him that Saul, hitherto his enemy, would ever after be his friend. He would not merely profess repentance, but would manifest the sincerity of it by encountering trials and reproaches for his sake. The prediction here was fully accomplished, Acts 20:23; 2 Corinthians 11:23-27; 2 Timothy 1:11-12.
Related Commentaries of Acts 9:16
Acts 9:16
16 For I will shew him how great things he must suffer for my name's sake.