“I, the Lord, have called you in righteousness; I will take hold of your hand. I will keep you and will make you to be a covenant for the people and a light for the Gentiles.” – Isaiah 42:6
Jesus is the fulfillment of the Old Testament and the promise of both the Old and New Covenants. “…And to Jesus, the mediator of a new covenant, and to the sprinkled blood that speaks a better word than the blood of Abel.” (Hebrews 12:24) “When God speaks of a ‘new’ covenant, it means He has made the firs one obsolete. It is now out of date and will soon disappear.” (Hebrews 8:43) This clearly demonstrates how the rigorous religious standards of archaic Judaism point to our need for a Savior, but how they are no longer necessary in order to have a relationship with God.
Christ’s sacrifice on the cross is vital to our eternal life. Without it, there is no forgiveness of our sin. Those who deny the need for Jesus Chrisf as the atonement for sin are clearly in direct opposition to the teachings of God’s Word itself. “In he same way, after the supper, He took the cup, saying, ‘This cup is the new covenant in My blood, which is Lourdes out for you.’ ” (Luke 22:20) “We all, like sheep, have gone astray, each of us has turned to our own way; and the Lord has laid on Him the iniquity of us all.” (Isaiah 53:6)