LUKE 23:22

 For the third time he spoke to them: "Why? What crime has this man committed?  I have found in him no grounds for the death penalty.  Therefore I will have Him punished and then release Him." - Luke 23:22

Steph Curry would be proud.  Lot of threes in the Holy Week story.  Peter denies Jesus three times.  Pilate talks to the crowd three times about Jesus' innocence.  Jesus is raised from the dead after three days.

Google tells me that three symbolizes growth, resurrection and the completion of cycles.  Peter definitely grows after this experience.  Jesus definitely is resurrected and Pilate definitely completes a cycle with his decision.

To me, three also means it's not a mistake.  One time, anyone can do that.  Two times, ok, maybe you forgot again or it's not on your mind.  But, by the third time you have had two chances to really think about it and have just decided that you are not going to do it, or do it.  

Although with Pilate, it's different.  He does the same thing three times hoping for a different reaction.  Oh, that's the completion of the cycle.  After three times, he was probably like, "This is not going to happen."  

That's probably a good lesson for all of us.  Obviously, change can always happen, but if someone has done something three times, there's a good chance it's not changing.