Thirteen years after Ishmael’s birth, the LORD appears to Abram with the news that the birth of the promised child is imminent. The LORD gives both Abram and Sarai new names; they will now be called Abraham and Sarah. As a sign of the covenant the LORD has made with Abraham, the LORD gives Abraham and his descendants circumcision as a reminder that the promised child comes through God’s action. Although Abraham laughs at God’s promise and suggests Ishmael could be his heir, the LORD confirms that Sarah will bear the son whose name will recall Abraham’s laughter. Abraham puts his faith in God’s promise into action by receiving circumcision along with his whole household. Rev. Carl Roth, pastor at Grace Lutheran Church in Elgin, TX, joins host Rev. Timothy Appel to study Genesis 17:1-24. To learn more about Grace Lutheran, visit graceelgin.org.“In the Beginning” is a series on Sharper Iron that studies Genesis. The first book of Moses sets the stage for God’s entire story of salvation. As we learn the beginning of the story, God prepares us to receive the fulfillment of the story: Jesus Christ, the Offspring of the woman who has crushed our enemy’s head. Sharper Iron, hosted by Rev. Timothy Appel, looks at the text of Holy Scripture both in its broad context and its narrow detail, all for the sake of proclaiming Christ crucified and risen for sinners. Two pastors engage with God's Word to sharpen not only their own faith and knowledge, but the faith and knowledge of all who listen. Submit comments or questions to: [email protected]