tn The disjunctive clause signals the beginning of a new episode in the story.
sn The passage records the birth of Ishmael to Abram through an Egyptian woman. The story illustrates the limits of Abram’s faith as he tries to obtain a son through social custom. The barrenness of Sarai poses a challenge to Abram’s faith, just as the famine did in chap. 12. As in chap. 12, an Egyptian figures prominently. (Perhaps Hagar was obtained as a slave during Abram’s stay in Egypt.)