You are of your father the devil, and the lusts of your father you will do. He was a murderer from the beginning, and abode not in the truth, because there is no truth in him. When he speaks a lie, he speaks of his own: for he is a liar, and the father of it.
All Commentaries on John 8:44 Go To John 8
Gregory The Dialogist
AD 604
Observe here the condescension of God. He who in by virtue of His Divinity could justify sinners, deigns to show from reason, that He is not a sinner. It follows: He that is of God hears God’s words; you therefore hear them not, because you are not of God.
Let him then, who would understand God's words ask himself whether he hears them with the ears of his heart. For there are some who do not deign to hear God’s commands even with their bodily ears; and there are others who do this, but do not embrace them with their heart’s desire; and there are others again who receive God’s words readily, yes and are touched, even to tears: but who afterwards go back to their sins again; and therefore cannot be said to hear the word of God, because they neglect to practice it.