How do we know Christ is our sin bearer?

The scripture clarifies that Jesus Christ is our sin bearer, highlighted in the typology of the smitten rock in Exodus 17. Just as Moses struck the rock to provide water, Christ was struck on the cross for the sins of His people, thereby satisfying God's justice. This act not only fulfilled the Law but also brings about the double rest of salvation — the removal of sin through Christ's sacrifice and the imputation of His righteousness to those who believe. Thus, believers can have full confidence that their sins are forgiven and they are made righteous before God.