See what great love the Father has given to us, that we (klēthōmen | κληθῶμεν | aor pass subj 1 pl) should (klēthōmen | κληθῶμεν | aor pass subj 1 pl) be (klēthōmen | κληθῶμεν | aor pass subj 1 pl) called (klēthōmen | κληθῶμεν | aor pass subj 1 pl) children of God — and so we are! The reason the world does not know us is that it did not know him.
Reference
1 John 3:1
Sequence
133