30 When he put it in these terms, many people decided to believe.
31 Then Jesus turned to the Jews who had claimed to believe in him. "If you stick with this, living out what I tell you, you are my disciples for sure. 32 Then you will experience for yourselves the truth, and the truth will free you." 33 Surprised, they said, "But we're descendants of Abraham. We've never been slaves to anyone. How can you say, 'The truth will free you'?" 34 Jesus said, "I tell you most solemnly that anyone who chooses a life of sin is trapped in a dead-end life and is, in fact, a slave. 35 A slave is a transient, who can't come and go at will. The Son, though, has an established position, the run of the house. 36 So if the Son sets you free, you are free through and through.
Matthew Henry's Commentary on John 8:30-36
Commentary on John 8:30-36
(Read John 8:30-36)
Such power attended our Lord's words, that many were convinced, and professed to believe in him. He encouraged them to attend his teaching, rely on his promises, and obey his commands, notwithstanding all temptations to evil. Thus doing, they would be his disciples truly; and by the teaching of his word and Spirit, they would learn where their hope and strength lay. Christ spoke of spiritual liberty; but carnal hearts feel no other grievances than those that molest the body, and distress their worldly affairs. Talk to them of their liberty and property, tell them of waste committed upon their lands, or damage done to their houses, and they understand you very well; but speak of the bondage of sin, captivity to Satan, and liberty by Christ; tell of wrong done to their precious souls, and the hazard of their eternal welfare, then you bring strange things to their ears. Jesus plainly reminded them, that the man who practised any sin, was, in fact, a slave to that sin, which was the case with most of them. Christ in the gospel offers us freedom, he has power to do this, and those whom Christ makes free are really so. But often we see persons disputing about liberty of every kind, while they are slaves to some sinful lust.