How do we know the significance of communion is true?

The significance of communion is rooted in the direct actions and words of Jesus during the Last Supper, as documented in the Gospels: He took the bread and cup, declaring them to be His body and blood. In 1 Corinthians 11:23-26, Paul reiterates this instruction, indicating that he received it from Christ. This conveys not only the ordinance's importance but also its divine institution. Thus, the meaning and significance of communion are validated by Scripture and the significance attached by Christ Himself, underscoring its role as a reminder of His sacrificial death and a proclamation of His gospel.