They said therefore to him, "Who are you? Give us an answer to take back to those who sent us. What do you say about yourself?"

 In this same section from John 1:19 to John 2:11 the Fourth Gospel gives us three different kinds of witness to the greatness and the uniqueness of Jesus. (i) There is the witness of John the Baptist ( John 1:19-34). (ii) There is the witness of those who accepted Jesus as their Master, and who became his disciples ( John 1:41-51). (iii) There is the witness of Jesus' own wonderful powers ( John 2:1-11). John is setting Jesus before us in three different contexts, and in each showing us his supreme wonder. 