Dispute Over Whose Children Jesus’ Opponents Are

31 To the Jews who had believed him, Jesus said, “If you hold to my teaching, you are really my disciples.

Read John 8:31 Using Other Translations

Then said Jesus to those Jews which believed on him,If ye continue in my word, then are ye my disciples indeed;
So Jesus said to the Jews who had believed in him, "If you abide in my word, you are truly my disciples,
Jesus said to the people who believed in him, “You are truly my disciples if you remain faithful to my teachings.