1 John 2:1-2 [1] My little children, these things write I unto you, that ye sin not. And if any man sin, we have an advocate with the Father, Jesus Christ the righteous: [2] And he is the propitiation for our sins: and not for our's only, but also for the sins of the whole world.
See All... says, “My little children, these things write I unto you, that ye sin not. And if any man sin, we have an advocate with the Father, Jesus Christ the righteous: And he is the propitiation for our sins: and not for ours only, but also for the sins of the whole world.”

Notice the word propitiation here. It is also used in 1John 4:10Herein is love, not that we loved God, but that he loved us, and sent his Son to be the propitiation for our sins.
See All... and Romans 3:25Whom God hath set forth to be a propitiation through faith in his blood, to declare his righteousness for the remission of sins that are past, through the forbearance of God;
See All.... We will go to these verses later. Propitiation means to satisfy the demands for justice . Propitiation teaches us that man is a sinner and that God hates sin because God is righteous. Therefore, sin must be judged and judgment was assigned to me by God the Father. The wrath of God is on all those who do not know Jesus Christ as their Saviour. However, when I trusted in Jesus Christ as my Saviour, He stood between me and the wrath of God. He took that wrath upon Himself, paid the price of my judgment, and gave me eternal life!  That is a blessed truth. It means that Jesus Christ satisfied God’s demand for the righteous judgment of my sin. That is the doctrine of propitiation in simplicity. Let us look at it in further detail.