(20) Because the Lord thy God brought it to me.--Jacob does not keep up his acting well here, for it was not in accordance with Esau's character to see anything providential in his success in hunting. This may have helped to arouse Isaac's suspicions, who immediately proceeds to examine him.

Verses 20, 21. - And Isaac (still dissatisfied, but still resolving to proceed with caution) said unto his son, How is it that thou hast found it so quickly, my son? Giving expression to a natural surprise at the speedy success which had attended Esau's hunting expedition; an interrogation to which Jacob replied With daring boldness (Murphy), with consummate effrontery (Bush), not without perjury (Calvin), and even with reckless blasphemy (Kalisch, Alford). And he said, Because the Lord thy God brought it to me. Literally, caused it to come before me; by the concurrence, of course, of his providence; which, though in one sense true, yet as used by Jacob was an impious falsehood. Solemn as this declaration was, it failed to lull the suspicions or allay the disquiet of the aged invalid. And Isaac said unto Jacob, Come near, I pray thee, that I may feel thee, my son, - the very thing which Jacob had suggested as likely to happen (ver. 12) - whether thou be my very son Esau (literally, this, my son Esau) or not.

27:18-29 Jacob, with some difficulty, gained his point, and got the blessing. This blessing is in very general terms. No mention is made of the distinguishing mercies in the covenant with Abraham. This might be owing to Isaac having Esau in his mind, though it was Jacob who was before him. He could not be ignorant how Esau had despised the best things. Moreover, his attachment to Esau, so as to disregard the mind of God, must have greatly weakened his own faith in these things. It might therefore be expected, that leanness would attend his blessing, agreeing with the state of his mind.And Isaac said unto his son,.... Supposing him to be Esau:

how is it that thou hast found it so quickly, my son? that is, the venison; that he had met with it so soon in, the field, and got it dressed and ready in so short a time, which was not common, and seemed to be too little for doing all this in it, and so still created some suspicion of deceit:

and he said, because the Lord thy God brought it to me; which was another falsehood; for it was not the Lord, but his mother brought it to him: and this seems to be the most marvellous of all, that so good a man should dare to bring the name of the Lord God into this affair; indeed he does not say the Lord my God, or our God, but thy God; which some think was done on purpose, the more to cover the deceit, because they suppose that Esau, whom Jacob impersonated, was an idolater, but this is not so evident; rather it looks as if Jacob had not the confidence to call the Lord his God with a lie in his mouth.