How about I put your out of context verse into context for you.
1 John 3:15
11For this is the message that ye heard from the beginning, that we should love one another.
12Not as Cain,
who was of that wicked one, and slew his brother. And wherefore slew he him? Because his own works were evil, and his brother's righteous.
13Marvel not, my brethren, if the world hate you.
14We know that we have passed from death unto life, because we love the brethren. He that loveth not
his brother abideth in death.
15Whosoever hateth his brother is a murderer: and ye know that no murderer hath eternal life abiding in him.
16Hereby perceive we the love
of God, because he laid down his life for us: and we ought to lay down
our lives for the brethren.
17But whoso hath this world's good, and seeth his brother have need, and shutteth up his bowels
of compassion from him, how dwelleth the love of God in him?
18My little children, let us not love in word, neither in tongue; but in deed and in truth.
I think that makes it pretty clear what the verses are about. Glad I could help you.
First, you act like I have not read this epistle before. Second, I do not see how these other verses change what 1 John 3:15 says plainly. You offered no explanation. Let me tell you what they are saying. But let's go back a little more to get the complete context here.
1 John 2:29 says he that does righteousness is born of Him.
This is how we tell a false prophet from a true one. Jesus said we will know false prophets by their fruit. So it makes sense that he that performs or does righteousness is born of God.
1 John 3:3 says, every man that has this hope in him purifies himself, even as he is pure.
Jesus says, be ye perfect as our Heavenly Father is perfect. The Father is perfect because He is holy and sinless. We know that every man that has the true of hope that is Jesus Christ purifies themselves in holiness and does not remain in their sins as a part of their old life. This meaks sense because Paul essentially says we used to be sinners as a part of our old life but we are not that way anymore (Ephesians 2:2-3) (Ephesians 4:17-27) (Colossians 3:5-10). For the Scriptures say without holiness no man shall see the Lord (Hebrews 12:14).
1 John 3:6 says, Whosoever abides in him sins not: whosoever sins has not seen him, neither known him.
The Antinomian or OSAS interpretation that says "all sin is paid for past, present, and future" does not work with 1 John 3:6. To say that whoever abides in Christ does not sin on a spiritual level (Because sin was is paid for) does not jive with what the second half of the verse say which says, "whosever sins has not seen him, neither knows him." This makes sense because the believers who will face Jesus in Matthew 7 in the future will be surprised to hear the words from Christ telling them to depart from him because he did not know them because they worked iniquity (i.e. sin). In other words, in Matthew 7:26-27 Jesus likens the one who hears Jesus's words and does them not as a foolish man who has built his house upon the sand whereby when the storm and the floods came, the fall of that house was great (i.e. house being represented of God's temple, i.e. the believer).
1 John 3:7 says, Little children, let no man deceive you: he that does righteousness is righteous, even as he is righteous.
Most in the Antinomian or OSAS camp love to push the idea of imputed righteousness way past the point of it's true purpose. They believe Christ's imputed righteousness extends to cover their sins that they have not even committed yet. That confession of sin and forsaking sin is not necessary so as to gain entrance into God's Kingdom. However, the real Imputed righteousness of Christ only applies if we agree with God's plan of salvation by submitting to the Lord. This is not just a one time act of obeying God once but it is a continued obedience to the Lord. How so? 1 John 3:7 refutes such thinking. It says he that does righteousness is righteous. In fact, John says not to be deceived on such a matter.
1 John 3:8 says, He that committs sin is of the devil; for the devil sins from the beginning. For this purpose the Son of God was manifested, that he might destroy the works of the devil.
1 John 3:8 lays to rest all Antinomian claims that they can sin and still be saved. The verse says clearly that he that commits sin is of the devil. This lines up nicely with what John says elsewhere, when he said in John 3:20, "everyone that does evil hates the light." We also learn in this verse that the reason why Christ came down in the flesh was so that He could destroy the works of the devil. This would not only be at the cross but it would also include Christ destroying the works of the devil (i.e. sin) in a person's life, too. For it is the Lord that lives in a believer working of His good will and pleasure in their life.
1 John 3:9 says, Whosoever is born of God doth not commit sin; for his seed remaineth in him: and he cannot sin, because he is born of God.
Does 1 John 3:9 mean that all who are born of God does not commit sin? Well, yes and no. First, the answer to that question would be a "no" in the sense that no man of God has never sinned whatsoever since being a believer. For the Scriptures record great men of God having sinned. We seen David, and Peter sin in Scripture. However, what sets them a part from others, though? Did they remain in their sins as a way of life with no desire to call out to God for forgiveness? No. Did they refuse to live a holy life over their entire life in being a believer? No.
Second, the answer to the question: "Do all who are born of God do not commit sin?" would be a "yes" in the sense that a believer does not live in sin day in and day out. This runs contrast to those other believers out who live a wicked and sinful life and do not see that confessing and forsaking sin as a means of obtaining God's mercy. This is wrong. However, the true believer is not characterized by a life of sin, though. Looking at a believer's life should let us know that they are holy and separate from the rest of the world. For a believer cannot sin day in and day out without confessing and forsaking sin. For all who have this hope purifies himself (1 John 3:3).
1 John 3:10 says, In this the children of God are manifest, and the children of the devil: whosoever doeth not righteousness is not of God, neither he that loveth not his brother.
Here is the real test! The children of God versus the children of the devil are shown for the true colors in this verse. Any person who does not righteousness is not of God. Anyone who does not love his brother is not of God. This means what it says. There is no room for making any additions or exceptions to what this verse says. It is clear. If one does not love, or of if one does not live righteously, they are not of God. This makes sense, because God's people would naturally be characterized by a life of goodness and holiness (Which is a reflection of God who lives in them).
1 John 3:11 says, For this is the message that ye heard from the beginning, that we should love one another.
Jesus says the greatest of the Commandments is to love (Which hangs all the Law and the prophets). The first greatest commandment is to love the Lord your God with all your heart, mind, and soul. We are actually commanded to do that. Imagine that? The second greatest commandment is to love your neighbor as yourself. For Paul says loving your neighbor fuflils the Law. For by doing so you will not murder, commit adultery, steal, or lie to others.
1 John 3:12 says, Not as Cain,who was of that wicked one, and slew his brother. And wherefore slew he him? Because his own works were evil, and his brother's righteous.
Now, here we see Cain mentioned as the contrast polar opposite in loving others. Cain murdered his brother instead of loving him. For why did Cain murder his brother? The verse says that Cain's works were evil and that his brother Abel's works were righteous. Cain had chosen a path of darkness that led to bad fruit in his life.
1 John 3:13 says, Marvel not, my brethren, if the world hate you.
All who live Godly in Christ will suffer persecution. Are you being persecuted by the world because you are living Godly? This should be a natural thing if we are living the Christian life. For we are not to be surprised that the world hates us. Matthew 10:22 says, "And ye shall be hated of all
men for my name's sake: but he that endureth to the end shall be saved" What does the believer endures in? Their faith (of course). We have to endure in our faith to the end. This is not a demon belief type faith that is devoid of works. For faith without works is dead (James 2:17).
Anyways, getting back on track, all who do evil hate the light (John 3:20). This is why Cain slew his brother. This is why men will speak all manner of evil against true believers (Matthew 5:11). I mean, take a step back and look at your so called brothers and sisters actions in how they treat others. Are they truly being loving towards others? Or do they accuse others falsely or speak in a way that is overtly cruel and mean? Does such actions in their life sound like they are of God according to His Word? Well, the Bible says, he that does not righteousness or does not love his brother is not of God (1 John 3:10).
1 John 3:14 says, We know that we have passed from death unto life, because we love the brethren. He that loveth not his brother abideth in death.
Okay. I see no OSAS in 1 John 3:14. In fact, on the contrary it says we have passed from spiritual death and move unto spiritual life because of what reason? It says we passed from death to life BECAUSE we love the brethren. This is a condition. We have to love our brother in order to pass from death to life. For he that does not love his brother abides in death. This is spiritual death and not physical death because the context says we pass from death to life when we love the brethren.
1 John 3:15 says, Whosoever hateth his brother is a murderer: and ye know that no murderer hath eternal life abiding in him.
Here we see the Cain analogy drawn in here. He hates his brother is a murderer. But then this verse really lays out clearly for us. It says he that is a murderer (i.e. he that hates his brother) has no eternal life abiding in them. Are you loving your brother today? Or are you hating your brother? Well, the Bible says hating your brother is the equivalent of being a murderer; And the Bible says no murderer has eternal life abiding in them. This means what it says at face value.
Nowhere in this chapter or this epistle is it talking about physical life and physical death here; And we learn that loving the brethren is the CONDITION of passing from death to life. This would obviously be more than just loving your brother once. One has to continually keep loving the brethren as a way of life. How do we love the brethren? The next two verses tell us.
1 John 3:16-17 says, Hereby perceive we the love of God, because he laid down his life for us: and we ought to lay down our lives for the brethren.But whoso hath this world's good, and seeth his brother have need, and shutteth up his bowels of compassion from him, how dwelleth the love of God in him?
We are to lay down our lives for the brethren just as Christ laid down his life for us. For if we have this world's goods and we see our brother in need and we withhold from them in being compassionate upon them, then how does the love of God abide in us? Can a person be saved without the love of God abiding in them? No. 1 John 3:10 already says, "In this the children of God are manifest, and the children of the devil: whosoever doeth not righteousness is not of God, neither he that loveth not his brother."
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