Am I not free] (RV puts this question first) i.e. being an Apostle, I am free from man's authority, and could do many things I abstain from doing for your sakes: cp. 1 Corinthians 9:19.
Have I not seen Jesus] An Apostle's work was to be a witness of the Resurrection (Acts 1:22; Acts 2:32); therefore he must have seen the risen Lord. This St. Paul had done at his conversion (Acts 22:14; 1 Corinthians 15:8-9).