Why is self-sacrifice important in showing kindness?

In the context of the Good Samaritan, self-sacrifice is the hallmark of true charity and love. The Samaritan exemplified this by not only feeling compassion but also acting upon it through significant personal investment—time, effort, and financial aid. Jesus commends such self-giving love when He instructs us to 'Go and do likewise.' True kindness is not merely spoken but is reflected in actions that require us to set aside our own comforts and resources for the benefit of others. This principle teaches Christians that the essence of love involves self-denial for the sake of others, mirroring Christ's self-sacrificial love for humanity.