Genesis 21:10

Genesis 21:10, in plain English

Sarah demands that Abraham send Hagar and Ishmael away permanently. She's not asking for a timeout; she's insisting on exile. She's afraid that Ishmael might one day challenge Isaac's birthright or inheritance.

Why it's here

Sarah's demand shocks us at first—it seems harsh, even cruel. But understand what she's protecting: the covenant, the inheritance, Isaac's future. In the ancient world, the legitimate heir had everything at stake. She's saying, 'Get them out. This boy cannot grow up in the same household as my son.' It's a brutal solution to what Sarah sees as an existential threat.

Who's speaking

Sarah speaks to Abraham, demanding action.

Where it sits in the story

This expulsion will break Abraham's heart—Ishmael is his firstborn—but it will also clarify God's plan. The covenant flows through Isaac, not through Ishmael. God will bless Ishmael too, but separately, and his descendants will become the Arab nations.

The scholarly reading

Sarah demands that Abraham expel Hagar and Ishmael, insisting that the slave woman's son cannot share Isaac's inheritance, thus establishing the exclusive nature of the covenant promise.

Language and setting

Sarah's language is harsh: gārash (גָּרַשׁ) means to 'drive out' or 'expel,' language elsewhere used for divorce. Her reasoning is legally sound in ancient Near Eastern context—slave-born sons could sometimes claim inheritance—but her determination is also personal. The phrase 'slave woman's son' (ben-hashiphchah, בן־הַשִׁפְחָה) emphasizes Ishmael's legal status and inferior standing, asserting that covenant privileges cannot be divided.

Voice

Sarah, making a demand of Abraham

Significance

This moment represents a crucial theological assertion: the promise cannot be attenuated or distributed. It passes exclusively through Isaac. Later New Testament interpretation (Galatians 4:21-31) will read this event as allegory for the relationship between law and grace, Hagar representing bondage and Sarah representing freedom in the promise.

8So the child grew and was weaned, and Abraham held a great feast on the day Isaac was weaned.

9But Sarah saw that the son whom Hagar the Egyptian had borne to Abraham was mocking her son,

10and she said to Abraham, “Expel the slave woman and her son, for the slave woman’s son will never share in the inheritance with my son Isaac!”

11Now this matter distressed Abraham greatly because it concerned his son Ishmael.

12But God said to Abraham, “Do not be distressed about the boy and your maidservant. Listen to everything that Sarah tells you, for through Isaac your offspring will be reckoned.

Read all of Genesis 21 — The promised son arrives — and Sarah laughs again, this time with joy. But the arrival of one son means the departure of another.