Midrash su Genesi 31:29

How do we know that children are “regaled” because of their fathers? At the time that Jacob fled from Laban and was being pursued by him, the Holy One, blessed be He, appeared before Laban on the road and said: Take heed to thyself that thou speak not to Jacob either good or bad (Gen. 31:29). When Laban and Jacob met, they began to rebuke each other. Jacob said to Laban: Except the God of my father, the God of Abraham, and the Fear of Isaac, had been on my side, surely now hadst thou sent me away empty, etc. (ibid. 31:42). Hence, it was only Abraham’s merit that saved Jacob. So Isaac was “regaled” because of Abraham, and Abraham was “regaled” because of Jacob.

God came to Laban the Aramean in a dream that night – What is the difference between the prophets of idol worshippers and the prophets of Israel? Rabbi Chema Bar Chanina and Rabbi Yissachar of Kfar Megdi answered: Rabbi Chema Bar Chanina said, "The Holy One Blessed Be He appears to the prophets of idol worshippers only in half-speech, as it says, 'God chanced upon Bilaam' (Bamidbar 23)." Rabbi Yissachar of Kfar Megdi said, "This language of 'chanced upon (vayiKaR)' connotes impurity, as it is used, 'If there will be amongst you a man who is not clean [because of a] nocturnal emission (miK'Reh lilah)' (Devarim 23)." But to the prophets of Israel, God speaks in full-speech, in language of affection, in holy language, in language that the ministering angels praise, calling to one another and saying, "Holy". Rabbi Yossi Bar Chanina said, "The Holy One Blessed Be He only appears to the prophets of idol worshippers at times when it is typical for people to be alone, as it is written (Iyov 4), 'In the thoughts of visions at night, when sleep falls on people ... a word was secretly conveyed to me etc.'" Rabbi Elazar said in the name of Rabbi Menachem, "(Mishlei 15) 'God is far from the wicked' – these are the prophets of idol worshippers. 'And the prayer of the righteous He will hear' – these are the prophets of Israel. What is the difference between the prophets of idol worshippers and the prophets of Israel? Rabbi Chanina Bar Papa and Rabbi Si'mon answered: Rabbi Chanina Bar Papa said, "Like a king and his beloved that are in a parlor. Each time the [King] requests, he speaks with his beloved. (Alternative version: Like a king and his beloved that are in a parlor, with a curtain between them. Each time he requests to speak with his beloved, he folds the curtain and speaks with his beloved.)" Rabbi Si'mon said, "Like a king that has a wife and a concubine. When he wants to visit his wife, he comes in public. When he wants to visit his concubine, he comes in secret. Similarly, The Holy One Blessed be He only reveals himself to idol worshippers at night: 'God came to Bilaam at night.'; 'God came to Avimelech in a dream at night'; 'God came to Laban in a dream at night. He said to him, "Watch yourself"-even if you say things for [Yaakov's] benefit, he will think they are bad'. 'Watch yourself, speaking to Yaakov good or bad.'"