“My little children, let us not love in word or in tongue, but in deed and in truth. And by this we know that we are of the truth, and shall assure our hearts before Him.” 1 John 3:18-19.
“In this the children of God and the children of the devil are manifest: Whoever does not practice righteousness is not of God, nor is he who does not love his brother.” I John 3:10.
“If you know that He is righteous, you know that everyone who practices righteousness is born of Him.” I John 2:29.
“Behold what manner of love the Father has bestowed on us, that we should be called children of God! Therefore the world does not know us, because it did not know Him.” I John 3:1.