The Jews were fearful because they thought their God was a privilege to be lost.
The Disciples were zealous because they knew their God was a privilege to be shared.
I prayed for years that God would "Lead Me to the Cross." I got in my car today, completely spent, and realized He had answered my prayers: "...rid me of myself; I belong to You" rang from my speakers. I have Something to share.
It's hard to share something without losing yourself in the process.
How confounding.