For all have sinned and fall short of the glory of God, being justified freely by His grace through the redemption that is in Christ Jesus. Romans 3:23,24 NKJV.
Redemption, apolutrosis, Strong’s # 629: A release secured by the payment of a ransom, deliverance, setting free. Jesus gives us forgiveness and justification, redemption as the result of expiation, deliverance from evil and the penalty of sin. The price paid was Jesus’ shed blood.
We have received a right relationship with God through the Blood. God has presented Jesus as the sacrifice for atonement or reconciliation from a separated humanity. Fellowship with a holy God can only be realized through atoning for the sins that has separated mankind from God and His covenant promises. It is the shed blood of Christ that ultimately satisfied the requirements of God’s justice.
It is though faith in the blood of Christ that mankind is justified in God’s eyes. The blood of Christ then also becomes the bond that joins people to God and entitles them to God’s covenant provisions. The blood of Christ is forever the only means of right relationship with the holy God.