THE DAY OF ATONEMENT
Leviticus 16:30 Because on this day atonement will be made for you, to cleanse you. Then, before the Lord, you will be clean from all your sins
THE CONCEPT OF PROPITIATION
1 John 2:2 (NIV) He is the atoning sacrifice for our sins, and not only for ours but also for the sins of the whole world.
1 John 2:2 (ESV) He is the propitiation for our sins, and not for ours only but also for the sins of the whole world.
1 John 4:10 This is love: not that we loved God, but that he loved us and sent his Son as an atoning sacrifice for our sins.
Romans 3:25-26 God presented Christ as a sacrifice of atonement, through the shedding of his blood - to be received by faith. He did this to demonstrate his righteousness, because in his forbearance he had left the sins committed beforehand unpunished - he did it to demonstrate his righteousness at the present time, so as to be just and the one who justifies those who have faith in Jesus.
Hebrews 9:12 He did not enter by means of the blood of goats and calves; but he entered the Most Holy Place once for all by his own blood, thus obtaining eternal redemption.
Hebrews 10:19-22 Therefore, brothers and sisters, since we have confidence to enter the Most Holy Place by the blood of Jesus, by a new and living way opened for us through the curtain, that is, his body, and since we have a great priest over the house of God, let us draw near to God with a sincere heart and with the full assurance that faith brings, having our hearts sprinkled to cleanse us from a guilty conscience and having our bodies washed with pure water