How do we know that baptism is significant in Christianity?

Baptism holds deep significance in the Christian faith as it symbolizes our union with Christ. As expressed in Romans 6:4, 'Therefore we are buried with him by baptism into death: that like as Christ was raised up from the dead by the glory of the Father, even so we also should walk in newness of life.' This act is a public declaration of the inward transformation that occurs when one is united with Christ in His death and resurrection. It represents the washing away of our sins and signifies the believer’s new life in Christ, affirming both faith in His work and the grace of God that empowers the believer.