How do we know that Christ Jesus accomplished our redemption?

The belief in the sufficiency of Christ's work for redemption is deeply rooted in Scripture, as seen in passages like Matthew 1:21, where it states, 'She will bear a son, and you shall call his name Jesus, for he will save his people from their sins.' This declaration points to the centrality of Christ's role in salvation, emphasizing that He doesn't merely offer a potential salvation but actively secures it for His people.

Furthermore, the effectiveness of His work is affirmed in verses such as John 19:30, where Jesus asserts, 'It is finished,' signifying the completed and perfect sacrifice for sin. This assurance is foundational to Reformed theology, which acknowledges that salvation is not contingent on human effort or decision but rests solely upon the finished work of Christ. Therefore, we confidently uphold that Christ indeed accomplished redemption for His people, rendering them justified before God.