One of the most prominent stories in the Bible, when it comes to second chance, is the story of Paul. Paul came along way after Jesus. He was devoted to Gods word. However, he did not start off this way. The Bible picks up his career as a Christian hater/persecutor. He literally taunted and threw them in jail, the people who believed in Christ and or God. His name during these atrocious times was Saul. God changed this man. He took his demons away and made him one of the most prolific, dedicated, faithful martyrs of the Bible. His name once he relinquished his old self to God was changed to Paul. The rest is history.
And do not be conformed to this world, but be transformed by the renewing of your mind, that you may prove what the will of God is, that which is good and acceptable and perfect.