3 See what great love^(A) the Father has lavished on us, that we should be called children of God!^(B) And that is what we are! The reason the world does not know us is that it did not know him.^(C)

¹⁹ This is how we know that we belong to the truth and how we set our hearts at rest in his presence: ²⁰ If our hearts condemn us, we know that God is greater than our hearts, and he knows everything.