42 Jesus said to them, If God were your father ye would have loved me, for I came forth from God and am come [from him]; for neither am I come of myself, but he has sent me. 43 Why do ye not know my speech? Because ye cannot hear my word. 44 Ye are of the devil, as [your] father, and ye desire to do the lusts of your father. He was a murderer from the beginning, and has not stood in the truth, because there is no truth in him. When he speaks falsehood, he speaks of what is his own; for he is a liar and its father: 45 and because I speak the truth, ye do not believe me.
46 Which of you convinces me of sin? If I speak truth, why do ye not believe me? 47 He that is of God hears the words of God: therefore ye hear [them] not, because ye are not of God.
Matthew Henry's Commentary on John 8:42-47
Commentary on John 8:41-47
(Read John 8:41-47)
Satan prompts men to excesses by which they murder themselves and others, while what he puts into the mind tends to ruin men's souls. He is the great promoter of falsehood of every kind. He is a liar, all his temptations are carried on by his calling evil good, and good evil, and promising freedom in sin. He is the author of all lies; whom liars resemble and obey, with whom all liars shall have their portion for ever. The special lusts of the devil are spiritual wickedness, the lusts of the mind, and corrupt reasonings, pride and envy, wrath and malice, enmity to good, and enticing others to evil. By the truth, here understand the revealed will of God as to the salvation of men by Jesus Christ, the truth Christ was now preaching, and which the Jews opposed.