They did not believe he had truely become a believer - Acts 9:26
After his conversion, Saul endured skepticism from the early Christians
Saul's encounter with Jesus changed the direction of his life but some who hear his message could not believer their ears
Wasn't this the same Saul who violently persecuted Christians? Yes and No
Saul was transformed - Anyone who belongs to Christ has become a new person - 2 Corinthians 5:17
In an instant, Saul transformed from a hateful, enemy of Jesus to his most vocal follower