Thematic Bible: Who the love of God is perfected in

(My little children, I am writing these things to you so that you may not sin.) But if anyone does sin, we have an advocate with the Father, Jesus Christ the righteous One, and he himself is the atoning sacrifice for our sins, and not only for our sins but also for the whole world. Now by this we know that we have come to know God: if we keep his commandments. read more.
The one who says "I have come to know God" and yet does not keep his commandments is a liar, and the truth is not in such a person. But whoever obeys his word, truly in this person the love of God has been perfected. By this we know that we are in him.