This is the message [of God’s promised revelation] which we have heard from Him and now announce to you, that God is Light [He is holy, His message is truthful, He is perfect in righteousness], and in Him there is no darkness at all [no sin, no wickedness, no imperfection].

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 the person who obeys what His teaching requires, truly in this person love for God has been made complete. This is [another way] to be sure that we are in [fellowship with] Him:

whoever says he lives in Christ [that is, whoever says he has accepted Him as God and Savior] ought [as a moral obligation] to walk and conduct himself just as He walked and conducted Himself.

He who loves his brother man continues in the light, and his life puts no stumbling-block in the way of others.

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.

I am writing these things to you about those whose purpose is that you may be turned out of the true way.

My little children, let no man take you out of the true way: he who does righteousness is upright, even as he is upright;

In this way it is clear who are the children of God and who are the children of the Evil One; anyone who does not do righteousness or who has no love for his brother, is not a child of God.

not [hate each other] the way Cain did, who belonged to the evil one [i.e., Satan], when he murdered his brother [Abel]. And why did he murder him? It was because his [own] actions were evil and his brother's were righteous [See Heb. 11:4].

We know what love is--through Christ's having laid down His life on our behalf; and in the same way we ought to lay down our lives for our brother men.

Little children [i.e., dear ones], we should not [merely] claim to love [people], or [even just] talk about it, but [we should love] by what we do [for them] in a genuine way.

And in this way we shall come to know that we are loyal to the truth, and shall satisfy our consciences in His presence

The one who keeps His commands remains in Him, and He in him. And the way we know that He remains in us is from the Spirit He has given us.

This is the way by which to know the inspiration of God--All inspiration that acknowledges Jesus Christ as come in our human nature is from God;

We are God's children. Whoever knows God listens to us; whoever is not a child of God will not listen to us. In this way we can tell what is inspired by truth from what is inspired by error.

God’s love was revealed among us in this way: God sent His One and Only Son into the world so that we might live through Him.

In this way is seen the true love, not that we loved God but that He loved us and sent His Son to be the atoning sacrifice for our sins.

Dear friends, if God loved us in this way, we also ought to love one another.

This is [one way] to know we live in [fellowship with] God and that He lives in our hearts: [It is] because He has given us His Holy Spirit [to live within us, See 3:24].

In this way love is made complete in us, so that we may be without fear on the day of judging, because as he is, so are we in this world.

Love has in it no element of fear; but perfect love drives away fear, because fear involves pain, and if a man gives way to fear, there is something imperfect in his love.

In this way, we are certain that we have love for the children of God, when we have love for God and keep his laws.

The one who believes in the Son of God [who adheres to, trusts in, and relies confidently on Him as Savior] has the testimony within himself [because he can speak authoritatively about Christ from his own personal experience]. The one who does not believe God [in this way] has made Him [out to be] a liar, because he has not believed in the evidence that God has given regarding His Son.

I have written in this way to you who believe in the name of the Son of God, that you may be sure you have life eternal.

If anyone [of you] observes his brother [or sister] sinning [in a way that would not lead] to [spiritual] death, he should ask [God, in prayer, to help that person], and God will give him [spiritual] life, [that is], to such ones, provided their sin is not leading to [spiritual] death. There is such a sin that leads to [spiritual] death. [See Heb. 6:4-6; I Tim. 5:6; Heb. 10:26-27; II Pet. 2:20-22]. I am not suggesting that you should ask [God, in prayer] about such a situation.