John Gill writes on Jn 8:47
"He that is of God heareth God’s words"
He that is of God,.... Who is born, not of blood, by carnal descent from any person, or of the carnal will, or by the power of freewill, or of the will of the best man in the world; but of God, according to his abundant mercy, of his own will, by the power of his grace; and so has God to be his Father: such an one heareth God's words; the doctrines of the Gospel, which have God for their author, being of his ordaining, sending, and publishing; and his grace for the matter of them, displayed in election, redemption, justification, pardon, adoption, and eternal salvation, and his glory for the end: now a regenerate man has eyes to see into the glory, loveliness, excellency, suitableness, and usefulness of these things; and he has ears to hear, and a heart to understand them, which others have not; and therefore hears them with pleasure, receives them in the love of them, cordially embraces them by faith, and distinguishes them from the words of man; and puts such of them in practice, as requires it: