John 18:39
But you have a custom that I should release one prisoner to you at the Passover. So shall I release to you the King of the Jews?"
Matthew 27:15-18
"Now it was the Governor's custom at the Festival to release some one prisoner, whomsoever the populace desired;
Matthew 27:20-23
The High Priests, however, and the Elders urged the crowd to ask for Barabbas and to demand the death of Jesus.
Mark 15:6-14
Now at the Festival it was customary for Pilate to release to the Jews any one prisoner whom they might beg off from punishment;
Luke 23:16-23
I will therefore give him a light punishment and release him."