1 John 1:9 says,
"If we confess our sins, he is faithful and just to forgive us our sins, and to cleanse us from all unrighteousness."
The verse above is actually saying you are forgiven of sin if you confess of it.
Now, before you say it, I am aware of the illogical excuse that this is talking about "
fellowship sins versus sins dealing with salvation" based on the appearances of the words "fellowship" in 1 John 1:3, 1 John 1:6, 1 John 1:7.
But nowhere do these verses (or elsewhere in the epistle) say that our sins are different in fellowship versus say sins that are not in regards to fellowship. In other words, in order for your belief here to be true, you would have to show either in John's epistle or elsewhere in Scripture that there are sins that are only in dealing with a break of fellowship (while one can still be saved) versus say sins committed in general or that do not deal with fellowship (But are sins that deal with one's salvation). To put it to you another, I would at least need a verse that shows that one can still be saved even if you were to break fellowship with God because of some kind of supposed "fellowship sin."
Also, 1 John 1:7 says,
"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 cleanses us from all sin."
Here in the verse above it is saying you are actually cleansed from all sin IF.... IF.... you walk in the light as He is in the light. Three is no mention here in John's epistle that you can walk in darkness and still be saved or have your sin cleansed, too.
1 John 2:3-6 says,
3 "And by this we know that we know him, if we keep his commandments.
4 He that says, I know him, and keeps not his commandments, is a liar, and the truth is not in him.
5 But whoever keeps his word, in him verily is the love of God perfected: by this we know that we are in him.
6 He that says he abides in him ought himself also so to walk, even as he walked."
Verse 3 above here is saying we can have an assurance in knowing if we find we are keeping His Commandments.
Verse 4 above is stating here that if we say we know Him, and we keep not His Commandments we are a liar and the truth is not in us.
Revelation 21:8 says all liars will have their part in the Lake of Fire. Also, Jesus is the way, the truth, and the life (John 14:6). So you cannot be saved without the truth. So 1 John 2:4 is a double condemnation upon anyone claiming to know God and if they are not keeping His Commandments.
Verses 5-6 says how the love of God can be perfected in our life and says if we abide in Him, we are to walk as He walked. But the Eternal Security crowd says you cannot walk like Jesus did. But verse 6 says we are supposed to walk as He did.
Proverbs 28:13 says,
"He that covers his sins shall not prosper: but whosoever confesses and forsakes them shall have mercy."
The Eternal Security Proponent believes their sins are automatically covered because they believe their sins are forgiven: Past, present, and future. But Proverbs 28:13 says he that covers his sins shall not prosper. While this verse is talking about a man who seeks to hide his sin physically, the same would hold true if a person comes up with a false belief that attempts to do the same thing.
Also, the second half of the verse says, whoever confesses and forsakes sin shall have mercy. This means, that if a person confesses and forsakes their sin before God, they will obtain mercy from Him.` This is the same thing that 1 John 1:9 and 1 John 1:7 says. 1 John 1:9 says we are forgiven of sin if we confess our sin and 1 John 1:7 says we forsake our sin by walking in the light as he is in the light which then cleanses us of all sin by the blood of Jesus Christ.
So we have two very clear witnesses in Scripture; One being 1 John 1:9 and 1 John 1:7, and the second one being Proverbs 28:13. Both of them say the same thing using different words. Only somebody with a belief that is outside of Scripture would attempt to change what these verses say plainly.
Side Note:
Oh, and 1 John 1:8 does not prove that a believer will always be abiding in some kind of sin, either. That is not what it is saying. 1 John 3:4 says, "sin is transgression of the Law." Breaking a Law is breaking God's Commandments. 1 John 2:4 says if a person breaks God's Commandments (i.e. if they sin) and they say they know Him, they are a liar and the truth is not in Him. So 1 John 1:8 cannot be saying you will always be breaking God's Commandments or sinning at some point in your life. Then what is 1 John 1:8 saying?
Well, the New English Translation says this for 1 John 1:8,
"If we say we do not bear the guilt of sin, we are deceiving ourselves and the truth is not in us." (
1 John 1:8 NET).
In other words, this verse is saying that if a person sins and says they do not bear the guilt of sin (in the sense that they will not have to face any wrath or Judgment from God over their sin) then they would be deceiving themselves and the truth would not be in them. This is exactly what the Eternal Security proposes. They are saying that they do not bear the guilt of any sin (destruction of their soul and body in hell fire) if they do sin because their sins are paid for: Past, present, and future by Jesus. They are saying, they do not bear the guilt or the punishment of sin at the final Judgment.
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