Genesis Genesis 21:1–34
Genesis 21 opens with the verb that will become the canon's word for divine intervention and closes with the divine epithet that will become the canon's word for God's eternity. Between them the narrator stages a birth, an expulsion, a wilderness rescue, a seven-fold oath, and a tamarisk planted at a well. Sarah speaks the Edenic expulsion-verb in the imperative; Yahweh ratifies her. God opens Hagar's eyes the way Eden's were opened, but to a well of water this time. The chapter is built as the Akedah's dress rehearsal, and two of its verses become the most exact verbatim citations of Genesis in the New Testament.
Genesis 16:1-16
An Egyptian slave woman flees into the desert, and the angel of Yahweh finds her at a spring. By the time she leaves the spring, she has named God — the only human in the Hebrew Bible ever to do so. Gen 16 is the chapter where humanity first tries to help the covenant along, and the chapter where the helper, broken and named El-Roi by the woman she abused, hears for the first time the Exodus formula a slave will hand to a nation.