Whoever believes that Jesus is the Christ is born of God, and everyone who loves Him who begot also loves him who 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 burdensome.
For whatever is born of God overcomes the world. And this is the victory that has overcome the world--our faith.
References for 1 John 5:4
Who is he who overcomes the world, but he who believes that Jesus is the Son of God?
This is He who came by water and blood--Jesus Christ; not only by water, but by water and blood. And it is the Spirit who bears witness, because the Spirit is truth.
For there are three that bear witness in heaven: the Father, the Word, and the Holy Spirit; and these three are one.
And there are three that bear witness on earth: the Spirit, the water, and the blood; and these three agree as one.
References for 1 John 5:8
If we receive the witness of men, the witness of God is greater; for this is the witness of God which He has testified of His Son.
References for 1 John 5:9
He who believes in the Son of God has the witness in himself; he who does not believe God has made Him a liar, because he has not believed the testimony that God has given of His Son.