GEN227 A man labors long, with the sweat of his brow, and only to provide for and to honor his father as befits a good and devoted son. Is it conceivable that he will even for one moment entertain the possibility that this man is not his father? … there is a feeling in a man’s heart  - a firm, steadfast, crystal-clear feeling – that his father is indeed his father, without the slightest shadow of a doubt. … And this, too, leads to an inexorable conclusion. If the Holy One Blessed be He has implanted it within the nature of a son to feel and to recognized that he is the son and that this is his father, how much more so must it reside within the feelings of a man’s soul to know, understand and acknowledge what is implicit in [this verse] – concerning which our sages of blessed memory say, “One who blows does so from within himself.” How much less, then, is it conceivable that a Jew, who is called a “son” of God, would not feel this and would not know his Father in heaven! And this is what underlies the prophet’s plaint, “Children I have made great and raised up and they have rebelled against Me.” Is this conceivable? Can it not be seen and understood that even an ox knows his owner and an ass his master’s crib through the nature that I have given him? How is it possible, then, that Israel does not know? BUILD 196-7