Sarah's amazement shows God's power.
What does Sarah's amazement in Genesis 21:7 teach about God's power?

Setting the Scene

“Who would have told Abraham that Sarah would nurse children? Yet I have borne him a son in his old age.” (Genesis 21:7)


Sarah’s Amazement in Context

- Sarah is around 90 years old (Genesis 17:17); Abraham Isaiah 100.

- Years of barrenness made motherhood seem impossible.

- God had promised a son (Genesis 18:10), but human limitations clouded expectation.

- Her astonishment springs from witnessing the impossible made real.


Lessons About God’s Power

• Power Unrestricted by Human Limits

Jeremiah 32:17: “Ah, Lord GOD! … Nothing is too difficult for You.”

– Age, biology, and circumstance cannot confine the Creator.

• Faith Validated by Fulfillment

Romans 4:19-21 shows Abraham’s faith growing stronger because he was “fully convinced that God was able to do what He had promised.”

– Sarah’s laughter of disbelief (Genesis 18:12-15) turns into laughter of joy (Genesis 21:6), displaying how fulfilled promise deepens trust.

• God’s Timing Is Perfect

Genesis 21:2 notes Isaac arrived “at the appointed time God had told him.”

– Delay is not denial; divine timing magnifies God’s glory.

• Display of Covenant Faithfulness

Genesis 17:19: Isaac is the covenant child.

– Sarah’s amazement highlights that God keeps every word, securing future generations.

• Invitation to Expect the Impossible

Luke 1:37: “For nothing will be impossible with God.”

Ephesians 3:20: He is “able to do infinitely more than all we ask or imagine.”


Personal Application

- When circumstances appear irreversible, remember Sarah’s stunned joy.

- Anchor hope in promises like Philippians 1:6—He finishes what He starts.

- Celebrate answered prayers as testimonies that strengthen others’ faith.

How does Genesis 21:7 demonstrate God's faithfulness to His promises?
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