Midrash su Salmi 103:13

R. Abahu used to lecture about the three kings. Becoming sick, he decided not to lecture about them any more. But after he was cured (Ib. b.) he lectured about them as before, and to the question of his disciples: "Have you not determined not to lecture any more about them?" he answered: "Did they then repent that I shall do so?" R. Ashi appointed a time for lecturing about the three kings, and said: "On the morrow we will begin our lecture about our colleague Manasseh." The latter then appeared to him in a dream, and said to him: "You call me a colleague and a colleague of your father? Answer me the question: "Where must one begin to cut the bread by the benediction of the hamotzi?" And he said: "I do not know." Manasseh then rejoined: "If you do not know the answer to even this which I question you, how can you call me a colleague." R. Ashi said to him: "Teach this to me, and tomorrow I will proclaim it in your name in the college." And he said: "From that part where it begins to bake when in the oven." Said R. Ashi again: "If you are so wise, why did you worship idols?" And Manasseh answered: "If you would have been living at that time you would have lifted up the edges of your dress [that they shall not impede you] to run after them to worship them." On the morrow said R. Ashi to the Rabbis: "Let us lecture about the great men. Achab — means Ach, a cause of grief to Heaven, and ab, a father (friend) of idolatry (I Kin. 16, 31) And it came to pass, as if it had been a light thing for him to walk in the sins of Jeroboam." R. Jochanan said: "The minor sins committed by Achab were greater than the grave sins that Jeroboam committed, and why then does the Scripture make Achab dependent on Jeroboam? Because he initiated corruption." (Hos. 12, 12) Their altars also are as stone heaps. R. Jochanan said: "There was not one heap in the land of Israel upon which Achab had not placed an idol and bowed himself down to it."

Again after three years Abraham went to see his son Ishmael, having sworn to Sarah as on the first occasion that he would not descend from the camel in the place where Ishmael dwelt. He came there at midday, and found there Ishmael's wife. He said to her: Where is Ishmael? She replied to him: He has gone with his mother to feed the camels in the desert. He said to her: Give me a little bread and water, for my soul is faint after the journey of the desert. She fetched it and gave it to him. Abraham arose and prayed before the Holy One, blessed be He, for his son, and (thereupon) Ishmael's house was filled with all good things of the various blessings. When Ishmael came (home) his wife told him what had happened, and Ishmael knew that his father's love was still extended to him, as it is said, || "Like as a father pitieth his sons" (Ps. 103:13). After the death of Sarah, Abraham again took (Hagar) his divorced (wife), as it is said, "And Abraham again took a wife, and her name was Keturah" (Gen. 25:1). Why does it say "And he again"? Because on the first occasion she was his wife, and he again betook himself to her. Her name was Keturah, because she was perfumed with all kinds of scents.