ליטעראַטור פֿון בית שני אויף בראשית 25:21

[4] This will be shown still more clearly by the oracle which was given to Rebecca or Patience (Gen. 25:21 ff.). She had conceived the two contending natures of good and evil and considered earnestly, as wisdom bade her, the character of both, when she perceived them leaping and as in a skirmish preluding the war that should be between them. And therefore she besought God to show her what had befallen her, and how it might be remedied. He answered her question thus: “two nations are in thy womb.” That was what had befallen her—to bear both good and evil. But again “two peoples shall be separated from thy womb.” This is the remedy, that good and evil be separated and set apart from each other and no longer have the same habitation.

[47] Again Isaac the all-wise besought God, and through the power of Him who was thus besought Steadfastness or Rebecca became pregnant (Gen. 25:21). And without supplication or entreaty did Moses, when he took Zipporah the winged and soaring virtue, find her pregnant through no mortal agency (Exod. 2:22).