This then is the message which we have heard from him, and declare to you, that God is light, and in him is no darkness at all.

And by this we do know that we know him, if we keep his commandments.

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

And this is the promise that he hath promised us, even eternal life.

And every man that hath this hope in him purifieth himself, even as he is pure.

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.

In this the children of God are manifest, and the children of the devil: whoever doeth not righteousness is not of God, neither he that loveth not his brother.

For this is the message that ye have heard from the beginning, that we should love one another.

By this we perceive the love of God, because he laid down his life for us: and we ought to lay down our lives for the brethren.

But he who 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?

And by this we know that we are of the truth, and shall assure our hearts before him.

And this is his commandment; That we should believe on the name of his Son Jesus Christ, and love one another, as he gave us commandment.

And he that keepeth his commandments, dwelleth in him, and he in him. And by this we know that he abideth in us, by the Spirit which he hath given us.

By this ye know the Spirit of God: Every spirit that confesseth that Jesus Christ hath come in the flesh, is from God:

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

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

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

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

By this we know that we dwell in him, and he in us, because he hath given us of his Spirit.

In this is our love made perfect, that we may have boldness in the day of judgment: because as he is, so are we in this world.

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

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

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 testimony, because the Spirit is truth.

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

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

And this is the confidence that we have in him, that if we ask any thing according to his will, he heareth us:

And we know that the Son of God hath 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.