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.

If we claim to share a relationship with God and yet live in darkness [i.e., in a sinful way], we are lying and are not living a truthful life.

But, if we live in the light [of righteousness] just like God [constantly] lives in the light [of righteousness], we can truly share a relationship with one another and [can know that] the blood of Jesus, God's Son, continues to cleanse [our spirits] from all of our sins.

[But] if we confess our sins [to God], He is faithful [to His promise] and righteous [in His judgment], and will forgive us of those sins and cleanse us from all of our wrongdoing.

If we claim that we have not committed sins, we are [in effect] calling God a liar [i.e., because He says we have] and His word [i.e., the real truth about the matter] is not in our hearts.

My little children (believers, dear ones), I am writing you these things so that you will not sin and violate God’s law. And if anyone sins, we have an Advocate [who will intercede for us] with the Father: Jesus Christ the righteous [the upright, the just One, who conforms to the Father’s will in every way—purpose, thought, and action].

Now by this we know that we have come to know God: if we keep his commandments.

The one who says "I have come to know God" and yet does not keep his commandments is a liar, and the truth is not in such a person.

But whoso keepeth his word, in him verily is the love of God perfected: hereby know we that we are in him.

The one who says he resides in God ought himself to walk just as Jesus walked.

My dearly loved ones, I am not writing to you about a new commandment, but about an old one. [It is the one] you had learned about from the beginning. [Note: This is the commandment to love one another (3:1: II John 5) which Jesus had taught his disciples during His earthly ministry. See Mark 12:31]. This old commandment is the word [of God] which you heard [previously].

On the other hand, I am writing a new commandment to you, which is true and realized in Christ and in you, because the darkness [of moral blindness] is clearing away and the true Light [the revelation of God in Christ] is already shining.

The one who says he is in the Light [in consistent fellowship with Christ] and yet habitually hates (works against) his brother [in Christ] is in the darkness until now.

[However], the person who loves his brother continues to live in [harmony with] the light [of God's truth], and such a person is not the cause of others stumbling [over his example].

I have written unto you, fathers, because ye have known him that is from the beginning. I have written unto you, young men, because ye are strong, and the word of God abideth in you, and ye have overcome the wicked one.

And the world passeth away, and the lust thereof: but he that doeth the will of God abideth for ever.

Dear children, it is [now] the last hour [i.e., the final period of God's dealing with people on earth], and since you have heard that an antichrist [i.e., a person who is against Christ] is coming, even now [you should be aware that] many antichrists have [already] come. This is [one way] we know that this is the last hour.

Who is the liar? It is the person who denies that Jesus [truly] is the Christ [i.e., God's specially chosen One]. This person is the antichrist [See verse 18]; he is the one who denies [the truth about] the Father and the Son.

And this is the promise which Christ [or, "God"] has given to us: [It is] never ending life. [Note: This passage may mean that God promised us "the Eternal Life," that is, Christ, See John 3:16].

The anointing you received from God abides in you, and you do not need anyone to teach you this. Instead, because God's anointing teaches you about everything and is true and not a lie, abide in him, as he taught you to do.

If you know that He is absolutely righteous, you know [for certain] that everyone who practices righteousness [doing what is right and conforming to God’s will] has been born of Him.

Behold, what manner of love the Father hath bestowed upon us, that we should be called the sons of God: therefore the world knoweth us not, because it knew him not.

Beloved, now are we the sons of God, and it doth not yet appear what we shall be: but we know that, when he shall appear, we shall be like him; for we shall see him as he is.

Everyone who practices sin also practices lawlessness; and sin is lawlessness [ignoring God’s law by action or neglect or by tolerating wrongdoing—being unrestrained by His commands and His will].

Little children [i.e., dear ones], do not allow anyone to lead you astray [from the truth]; the person who continues to do what is right is [considered by God as] righteous, even as Christ is righteous.

He that committeth sin is of the devil; for the devil sinneth from the beginning. For this purpose the Son of God was manifested, that he might destroy the works of the devil.

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.

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.

and not be like Cain, who was of the evil one and murdered his brother [Abel]. And why did he murder him? Because Cain’s deeds were evil, and his brother’s were righteous.

Every person who hates his brother is a murderer [in God's sight]; and you [surely] know that no murderer has [the hope of] never ending life remaining in his heart.

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?

My little children, do not let our love be in word and in tongue, but let it be in act and in good faith.

By this we will know [without any doubt] that we are of the truth, and will assure our heart and quiet our conscience before Him

For if our heart condemn us, God is greater than our heart, and knoweth all things.

Beloved, if our heart condemn us not, then have we confidence toward God.

and we can be assured of receiving from God whatever we ask Him for, because we are obeying His commands [i.e., especially the one about loving others] and are practicing what is pleasing to Him.

The man who obeys His commands continues in union with God, and God continues in union with him; and through His Spirit whom He has given us we can know that He continues in union with us.

Beloved, believe not every spirit, but try the spirits whether they are of God: because many false prophets are gone out into the world.

Hereby know ye the Spirit of God: Every spirit that confesseth that Jesus Christ is come in the flesh is of God:

And every spirit that confesseth not that Jesus Christ is come in the flesh is not of God: and this is that spirit of antichrist, whereof ye have heard that it should come; and even now already is it in the world.

Ye are of God, little children, and have overcome them: because greater is he that is in you, than he that is in the world.

They are the world's children, and so their language is that of the world, and the world listens to them. We are God's children.

We are of God: he that knoweth God heareth us; he that is not of God heareth not us. Hereby know we the spirit of truth, and the spirit of error.

Beloved, let us love one another: for love is of God; and every one that loveth is born of God, and knoweth God.

He that loveth not knoweth not God; for God is love.

In this was manifested the love of God toward us, because that God sent his only begotten Son into the world, that we might live through him.

Herein is love, not that we loved God, but that he loved us, and sent his Son to be the propitiation for our sins.

Beloved, if God so loved us, we ought also to love one another.

No man hath seen God at any time. If we love one another, God dwelleth in us, and his love is perfected in us.

By this we know that we reside in God and he in us: in that he has given us of his Spirit.

Whosoever shall confess that Jesus is the Son of God, God dwelleth in him, and he in God.

And we have known and believed the love that God hath to us. God is love; and he that dwelleth in love dwelleth in God, and God in him.

We love because God first loved us.

If a man say, I love God, and hateth his brother, he is a liar: for he that loveth not his brother whom he hath seen, how can he love God whom he hath not seen?

And this commandment have we from him, That he who loveth God love his brother also.

Whosoever believeth that Jesus is the Christ is born of God: and every one that loveth him that begat loveth him also that is begotten of him.

By this we know that we love the children of God, when we love God, and keep his commandments.

For this is the love of God, that we keep his commandments: and his commandments are not grievous.

For whatsoever is born of God overcometh the world: and this is the victory that overcometh the world, even our faith.

Who is he that overcometh the world, but he that believeth that Jesus is the Son of God?

If we receive the witness of men, the witness of God is greater: for this is the witness of God which he hath testified of his Son.

He that believeth on the Son of God hath the witness in himself: he that believeth not God hath made him a liar; because he believeth not the record that God gave of his Son.

And this is the record, that God hath given to us eternal life, and this life is in his Son.

He that hath the Son hath life; and he that hath not the Son of God hath not life.

These things have I written unto you that believe on the name of the Son of God; that ye may know that ye have eternal life, and that ye may believe on the name of the Son of God.

And this is [how we can express] boldness in our relationship with God: Whatever we ask [of God, in prayer], so long as it is in harmony with His will for us, [we know] He hears our request.

And if we are certain that he gives ear to all our requests, we are equally certain that we will get our requests.

If any man see his brother sinning a sin not unto death, he shall ask, and God will give him life for them that sin not unto death. There is a sin unto death: not concerning this do I say that he should make request.

We know that whosoever is born of God sinneth not; but he that is begotten of God keepeth himself, and that wicked one toucheth him not.

And we know that we are of God, and the whole world lieth in wickedness.

And we know that the Son of God is come, and hath given us an understanding, that we may know him that is true, and we are in him that is true, even in his Son Jesus Christ. This is the true God, and eternal life.

Little children (believers, dear ones), guard yourselves from idols—[false teachings, moral compromises, and anything that would take God’s place in your heart].