Matthew 27:3

Judas evidently felt remorse because he realized that he had condemned an innocent man to death. His remorse (Gr. metamelomai) resulted in a kind of repentance (Gr. metanoeo), but it was not complete enough. The first of these two Greek words does not indicate "sorrow for moral obliquity and sin against God, but annoyance at the consequences of an act or course of acts, and chagrin at not having known better." [Note: Vincent, 1:117.] Judas was sorry for what he had done and tried to make amends, but He never believed that Jesus was the Son of God (cf. Acts 1:16-19).