Midrasz do Rodzaju 35:27

(Hosea 12:13 [12]:) THEN JACOB FLED TO THE LAND OF ARAM. From where did he flee? From Beersheba, as stated (in Gen. 28:10): AND JACOB SET OUT FROM BEERSHEBA. Was he in Beersheba? Was he not rather in Hebron, as stated (in Gen. 35:27): I.E., HEBRON, WHERE ABRAHAM AND ISAAC SOJOURNED? < The situation was merely that he fled > from a place set aside for oaths (shevu'ot), since < it was > there < that > Abraham had sworn to Abimelech. Thus it is stated (in Gen. 21:23, 31): SO NOW SWEAR TO ME BY GOD, BEHOLD…. THEREFORE THAT PLACE WAS NAMED BEERSHEBA, (i.e., The Well of the Oath) BECAUSE < IT WAS > THERE < THAT > BOTH OF THEM HAD SWORN. Now where is it shown that Isaac had sworn? Where it is stated (in Gen. 26:32f.): THAT ISAAC'S SERVANTS CAME < AND TOLD HIM ABOUT THE WELL >…. SO HE CALLED IT SHIBAH (i.e., oath); < THEREFORE THE NAME OF THE CITY IS BEERSHEBA UNTO THIS DAY >.²⁸Similarly Rashi and Nachmanides on Gen. 26:33. Cf. Malbim on this verse, according to whom Beersheba means “seventh well,” in that this well was the seventh dug by Isaac. Cf. also Ibn Ezra, who, because of what might be an alternative derivation from the number seven in Gen. 21:23-33, suggests that either Beersheba had two derivations or that there were two cities with this name. And Esau also swore to Jacob, as stated (in Gen. 25:33): < THEN JACOB SAID > SWEAR TO ME FIRST. < Thus he swore an oath > when he took his birthright. He thought in his heart and said: If he should come and say: Come, swear to me that you have not taken my blessing by deceit, what shall I be able to do to him? I shall simply go away from this place set aside for oaths. It is therefore stated (in Gen. 28:10): AND JACOB SET OUT FROM BEERSHEBA (i.e., The Well of the Oath).²⁹Beersheba seems to be, not a particular city, but any well where one might swear an oath. Thus, there is no contradiction between Jacob living in Hebron and setting out from Beersheba, i.e., the Hebron oath well. Ergo (in Hosea 12:13 [12]): THEN JACOB FLED TO THE LAND OF ARAM.