Genesis 21:1-21: For Unto Us a Child is Born: Isaac, Ishmael, and the Word of God
Update: 2025-09-28
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Genesis 21:1-21: Summary: God delivers on His Word. Isaac is born and celebrated. The Gospel has its next figurehead. But Ishmael doesn't buy it. At Isaac's coming of age, Ishmael 'persecutes' him. A son of the flesh, born to slavery, Ishmael shows disdain for his younger brother, the son of promise, born for freedom. Sarah charges Abraham to divide his family lines. Isaac is the heir of the Abrahamic blessing. This is a trial for Abraham. It's always hard to let go of our flesh and give all to God's grace. God confirms Sarah's request. His purpose of election is with Isaac, not Ishmael. Abraham sends Hagar and Ishmael away. Soon as their provisions for surviving the wilderness run dry, and they cry, God hears and helps from Heaven. His provision never runs dry. He unveils a well of life in the howling wilderness to the outcast. Would that they would do all they could to follow Him wherever He's made His blessing to dwell! Every word of God proves true, defining, and sufficient for life.
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