Matthew 27:1-10
And throwing down the pieces of silver into the temple, he departed, and he went and hanged himself. (Matthew 27:5 ESV)
Judas Iscariot returned the money he had received for betraying Jesus. Then he went and hung himself. The chief priests rejected his plea for forgiveness because they refused to acknowledge that anything wrong had taken place. They then used the thirty pieces of silver to purchase a field called the field of blood.
Judas threw the money into the Temple out of disgust. He was disgusted with his own actions, but he was also probably disgusted with the responses of the religious leaders. He realized his erroneous ways
Judas was remorseful, he regretted his actions, that much is clear. However, he did not take his sin to the one place where it could be dealt with. He did not take his sin to Jesus. He did not repent. Instead he ended his own life.
Judas Iscariot's story is tragically sad. It is the story of a what can happen when we deal with our sin in the wrong way. Jesus does save us from sin. He died for that very thing. But we have to take it to him, we have to believe that he will do it, and we have to entrust our lives to him.