1 John 3:1-3 (NRSV)
1 See what love the Father has given us, that we should be called children of God; and that is what we are. The reason the world does not know us is that it did not know him. 2 Beloved, we are God’s children now; what we will be has not yet been revealed. What we do know is this: when he[a] is revealed, we will be like him, for we will see him as he is. 3 And all who have this hope in him purify themselves, just as he is pure.