How do we know Christ's sacrificial love is effective?

Christ's love is not just an emotional sentiment; it is demonstrated through His sacrificial actions on the cross. As described in John 13, His washing of the disciples' feet symbolizes the cleansing from sin that He offers through His sacrificial death. Christ knew that His work was finished, and His act of servitude foreshadowed the ultimate sacrifice He would make. This profound love ensures that all who believe in Him are fully cleansed and reconciled to God, as stated in Colossians 1:21-22, affirming that our salvation is secured solely through His atoning death.