Acts 4:13 The members of the council were amazed when they saw the boldness of Peter and John, for they could see that they were ordinary men with no special training in the Scriptures. They also recognized them as men who had been with Jesus.
It was undeniable to those persecuting Peter and John that they had been with Jesus.
When we have been with Jesus, not only will we have the courage to step out in faith, like when Peter and John stepped out in faith in Acts 3 to heal the Blind man, but we will have courage to step into persecution like in Acts 4.
Courage comes when we have been with Jesus.