What does the Bible say about the blood of the New Testament?

In Matthew 26:26-28, Jesus teaches that His blood is the new covenant's foundation, symbolizing the promise He made for the remission of sins. The word 'Testament' refers to 'covenant,' which embodies this divine promise. Through His sacrificial blood, God's mercy and grace extend to those whom He has chosen, highlighting the truth that without the shedding of blood, there is no remission of sin (Hebrews 9:22). This means that God's covenant was established through Christ's blood, which fulfills the sacrificial requirements of the Old Testament, ultimately providing salvation to many.