Why do you not understand My speech? Because you are not able to listen to My word.
John 8:43
Surrounding context
8:42 Jesus said to them, "If God were your Father, you would love Me, for I proceeded forth and came from God; nor have I come of Myself, but He sent Me.
8:43 Why do you not understand My speech? Because you are not able to listen to My word.
8:44 You are of your father the devil, and the desires of your father you want to do. He was a murderer from the beginning, and does not stand in the truth, because there is no truth in him. When he speaks a lie, he speaks from his own resources, for he is a liar and the father of it.