Why is it important for Christians to care about others?

Christians are called to love one another as an expression of the grace and mercy they have received from God. As Jesus states in John 15:16-19, our love for one another is a distinguishing mark that reflects our relationship with Christ. Indifference contradicts the nature of God, who has demonstrated His love through the sacrifice of His Son. When we disregard the needs of others, we not only deny them the love they deserve but also fail to accurately represent the character of Christ in the world.