One of the biggest mistakes we can make as Christians is assuming that because Christ died for us, we have an automatic pass into heaven. While we can never earn our way into heaven; we must live the teachings of Christ daily. Nowhere in the bible did Jesus preach, “After my death and resurrection you can do whatever you want.”
The other mistake is to believe we are not worthy of the everlasting life promised to us through Christ’s death and resurrection. While we may fail to live the teachings of Christ, God will forgive us if we seek his forgiveness. Why would the Father send his Son to die for us if not because of God’s love for us?