1 John 5:2-6

By this we know [without any doubt] that we love the children of God: [expressing that love] when we love God and obey His commandments. For the [true] love of God is this: that we habitually keep His commandments and remain focused on His precepts. And His commandments and His precepts are not difficult [to obey]. For everyone born of God is victorious and overcomes the world; and this is the victory that has conquered and overcome the world—our [continuing, persistent] faith [in Jesus the Son of God]. Who is the one who is victorious and overcomes the world? It is the one who believes and recognizes the fact that Jesus is the Son of God. This is He who came through water and blood [His baptism and death], Jesus Christ—not by the water only, but by the water and the blood. It is the [Holy] Spirit who testifies, because the Spirit is the truth. [He is the essence and origin of truth itself.]