Bible Verses About Zeal: Godly sorrow leads to

For the sorrow that is according to God worketh penance, steadfast unto salvation: but the sorrow of the world worketh death.

For behold this selfsame thing, that you were made sorrowful according to God, how great carefulness it worketh in you: yea defence, yea indignation, yea fear, yea desire, yea zeal, yea revenge. In all things you have shewed yourselves to be undefiled in the matter.