Biblical Answer

The difference between a good Christian and someone who's given up is that a good Christian is a person who prioritizes Christ above all else, while someone who's given up may be a person who has lost their passion and commitment to their faith. A good Christian is someone who is enabled to repent and pick themselves up and begin over again after each stumble, because the Christ-life is not a static state but a dynamic process of growth and development. On the other hand, someone who's given up may be a person who has become stagnant and complacent in their faith, and has lost sight of their spiritual goals and aspirations.

A good Christian is characterized by their love for others, their willingness to serve and give, and their commitment to living a life that reflects the teachings of Jesus. They are not perfect, but they are enabled by the Holy Spirit to grow and mature in their faith, and to become more like Christ. Someone who's given up, on the other hand, may be a person who has lost their sense of purpose and direction, and is no longer motivated to serve others or to live a life that honors God.

The key difference between a good Christian and someone who's given up is not that one is perfect and the other is not, but that one is living a life that is characterized by a deepening relationship with Christ, while the other is not. A good Christian is someone who is pressing on towards the goal of becoming more like Christ, and who is willing to surrender their own desires and interests to follow Him. Someone who's given up, on the other hand, may be a person who has lost sight of this goal, and is no longer willing to surrender themselves to God's will.