Jesus explains that being free is about more than being a Jew or not a slave, then insults the people who believe in Him; He later sends out 72 disciples to spread the good news, uses the parable of the good Samaritan to explain what a neighbour is, and visits Martha and Mary: John 8:21–59; Luke 10
Jesus came to set the oppressed free. He explained to a group of believers how this could happen:
John 8:31-32 You are truly my disciples if you remain faithful to my teachings. And you will know the truth, and the truth will set you free.
They didn’t understand it: they were Jews (their father was Abraham) and had never been slaves to anyone. Why would they need setting free?
John 8:34-36 I tell you the truth, everyone who sins is a slave of sin. A slave is not a permanent member of the family, but a son is part of the family forever. So if the Son sets you free, you are truly free.
He then went on to explain that maybe their father was Abraham, but it wouldn’t count for much if they kept sinning or joined in the plot to murder Jesus.