1. That which was from the beginning, which we have heard, which we have seen with our eyes, which we have looked upon, and our hands have handled, of the Word of life;
2. (For the life was manifested, and we have seen it, and bear witness, and shew unto you that eternal life, which was with the Father, and was manifested unto us;)
3. That which we have seen and heard declare we unto you, that ye also may have fellowship with us: and truly our fellowship is with the Father, and with his Son Jesus Christ.
4. And these things write we unto you, that your joy may be full.
5. This then is the message which we have heard of him, and declare unto you, that God is light, and in him is no darkness at all.
6. If we say that we have fellowship with him, and walk in darkness, we lie, and do not the truth:
7. But if we walk in the light, as he is in the light, we have fellowship one with another, and the blood of Jesus Christ his Son cleanseth us from all sin.
8. If we say that we have no sin, we deceive ourselves, and the truth is not in us.
9. If we confess our sins, he is faithful and just to forgive us our sins, and to cleanse us from all unrighteousness.
10. If we say that we have not sinned, we make him a liar, and his word is not in us.

Zechariah 13:1 In that day there shall be a fountain opened to the house of David and to the inhabitants of Jerusalem for sin and for uncleanness.

John 1:29 The next day John seeth Jesus coming unto him, and saith, Behold the Lamb of God, which taketh away the sin of the world.

1 Corinthians 6:11 And such were some of you: but ye are washed, but ye are sanctified, but ye are justified in the name of the Lord Jesus, and by the Spirit of our God.

Ephesians 1:7 In whom we have redemption through his blood, the forgiveness of sins, according to the riches of his grace;

Hebrews 9:14 How much more shall the blood of Christ, who through the eternal Spirit offered himself without spot to God, purge your conscience from dead works to serve the living God?

1 Peter 1:19 But with the precious blood of Christ, as of a lamb without blemish and without spot:

1 John 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:

1 John 2:2 And he is the propitiation for our sins: and not for ours only, but also for the sins of the whole world.

1 John 5:6 This is he that came by water and blood, even Jesus Christ; not by water only, but by water and blood. And it is the Spirit that beareth witness, because the Spirit is truth.

1 John 5:8 And there are three that bear witness in earth, the Spirit, and the water, and the blood: and these three agree in one.

Revelation 1:5 And from Jesus Christ, who is the faithful witness, and the first begotten of the dead, and the prince of the kings of the earth. Unto him that loved us, and washed us from our sins in his own blood,

Revelation 7:14 And I said unto him, Sir, thou knowest. And he said to me, These are they which came out of great tribulation, and have washed their robes, and made them white in the blood of the Lamb.