JESUS - 1 John 2:1-2

My dear children, I write this to you so that you will not sin. But if anybody does sin, we have an advocate with the Father--Jesus Christ, the Righteous One. He is the atoning sacrifice for our sins, and not only for ours but also for the sins of the whole world.

My dear children 
1 John 2:12  I am writing you, dear children, because your sins have been forgiven on account of his name.
1 John 3:7  Dear children, do not let anyone lead you astray. the one who does what is right is righteous, just as he (Christ) is righteous.
1 John 3:18  Dear children, let us not love with words or speech but with actions and in truth.
1 John 4:4  You, dear children, are from God and have overcome them (false spirits), because the one who is in you is greater than the one who is in the world.
1 John 5:21  Dear children, keep yourselves from idols.
1 Thessalonians 2:11-12  For you know that we dealt with each of you as a father deals with his own children, encouraging, comforting and urging you to live lives worthy of God, who calls you into his kingdom and glory.

we have an advocate with the Father 
Romans 8:34  Who then is the one who condemns? No one. Christ Jesus who died--more than that, who was raised to life--is at the right hand of God and is also interceding for us.
1 Timothy 2:5  For there is one God and one mediator between God and mankind, the man Christ Jesus, ...

He is the atoning sacrifice for our sins 
Romans 3:25a  God presented Christ as a sacrifice of atonement, through the shedding of his blood--to be received by faith.
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.

and not only for ours but also for the sins of the whole world 
Matthew 1:21  "She will give birth to a son, and you are to give him the name Jesus, because he will save his people from their sins."
John 3:17  For God did not send his Son into the world to condemn the world, but to save the world through him.

(parentheses are mine)

Scriptures taken from the Holy Bible, New International Version® NIV®, Copyright© 1973, 1978, 1984, 2011 by Biblica, Inc.® Used by permission. All rights reserved worldwide. 
Limited to 15 verses per post.