How does the New Covenant relate to Christ's blood?

The New Covenant, as established by Christ during the Last Supper, signifies a new relationship between God and His people, secured by the blood of Jesus. In Matthew 26:28, Christ refers to His blood as the blood of the New Covenant, which is poured out for the remission of sins. This covenant emphasizes the certainty of salvation for those who believe, ensuring that God's promises are fulfilled through Christ's sacrifice. It assures believers of their eternal security as they stand justified before God.