Matthew 27:3
Then when Judas, his betrayer, saw that Jesus was condemned, he changed his mind and brought back the thirty pieces of silver to the chief priests and the elders. Judas' remorse: seeing the condemnation that his betrayal produced, Judas changed his mind and returned the silver. The changed his mind (metamelomai) is remorse rather than the repentance (metanoia) that transforms — the grief of one who regrets the consequence rather than the transgression.