Did not [Jesus] say, "You are of your father the devil, for his works you do?" Why, then, should you mock God by saying, "Our Father which art in heaven." For how can He be your Father? Have you two Fathers? And if He be a Father, where is His honor? Where is His love? You neither honor nor love Him, and yet you presumptuously and blasphemously approach Him, and say, "Our Father," when your heart is attached still to sin, and your life is opposed to His law, and you therefore prove yourself to be an heir of wrath, and not a child of grace!
C.H. Spurgeon