Foot-washing in the Bible is a symbolic act performed by Jesus, embodying servitude, sacrifice, and unity among believers. He washes his disciples' feet during their Passover meal to demonstrate true greatness lies not in power or authority, but in selfless service. This act serves as a model for future generations, emphasizing the importance of serving one another in love and compassion. Today, we can apply Jesus' example by engaging in acts of kindness and service towards others, perpetuating the legacy of foot-washing and inspiring unity among believers.